Important updates to Zoho CRM's email deliverability

Important updates to Zoho CRM's email deliverability

Last modified on: Jul 24, 2024
These enhancements are released for all users across all data centers.

Modified on: Oct 30, 2023
Organisations that are in the Enterprise and above editions of Zoho CRM, and have not authenticated their email-sending domains will have their newly created mass emails and other email notifications associated with newly created or edited automated processes (like workflows, blueprints, etc.) sent from email addresses connected to Zoho's own authenticated domains. This change has been rolled out to accounts across all data centres. Upon authenticating their domains, the emails tied to these processes will be sent from their own email addresses automatically.

Modified on: Oct 4, 2023
Organisations who are in the FreeStandard, and Professional editions of Zoho CRM, and have not authenticated their email-sending domains will have all their emails sent from email addresses connected to Zoho's own authenticated domains. This change has now been applied to accounts in all data centres. Once these accounts authenticate their domains, the emails will automatically be sent from their own email addresses.
Dear All,
 
We're thrilled to talk about the enhancements that are coming up to improve Zoho CRM's email deliverability, as well as the systems we have in place today to support our customers' email communications.
 
As you might know, our current systems help users send nearly 100 million emails every month via Zoho CRM, be it through features like workflow rules, mass emails, emails sent for meetings, 1-to-1 sales communication purposes and so on. We're looking to update these systems and make some in-product changes to ensure that customer emails have the best possible delivery rate without any bounces and that our email-sending IPs and domains have the best sender reputations.
 
We believe this is a crucial update to our email features, as improving sender reputation results in higher deliverability of our customers' emails, which in turn gives them high conversion rates in their business communications and sales pipelines. To help us achieve this, we're working to ensure that all emails that go out from Zoho CRM only do so from email addresses connected to authenticated domains.

What is domain authentication?

Our systems have to recognize that users actually own the domains connected to the email addresses from which they send emails. When users add the necessary SPF and DKIM files to their domain's DNS settings, their email-sending domains will be successfully authenticated.
 
Zoho CRM then provides this authentication information to recipients' inbox providers every time we send an email. By doing so, inbox providers like Gmail, and Outlook, can be confident that the emails they receive from Zoho CRM are really from whom the senders claim to be, and this improves our system's sender reputation. Conversely, by sending emails connected to non-authenticated domains, we fail to provide inbox providers with this confidence, which brings down our sender reputation.

How are these updates going to ensure domain authentication?

  1. Email addresses from public domains will automatically be re-formatted: Email addresses from public domains like Gmail, Yahoo, and Outlook will be automatically updated to Zoho CRM's own authenticated domains. For example, when a user sends emails using emailaddress@gmail.com via Zoho CRM, the email's recipients will see the emails in their inboxes as being sent from emailaddress.gmail.com@zohocrm-2380248-sdus09.com.

    We're making this change and disallowing the use of public email providers, as they are prone to the extreme scrutiny of inbox providers and have poor deliverability rates—thereby affecting our sender reputation. For instance, when rogue users sign up for Zoho CRM free trials using addresses from public email providers just to send spam emails through our systems, we will be able to act faster and stop these users, as the emails they send are routed from our authenticated domains and we can easily identify any bad actors damaging our sender reputation.

  2. Email addresses from non-authenticated domains will also be automatically re-formatted: We are mandating domain authentication for all email-sending domains. This means that even if users have been sending emails through non-authenticated email addresses so far, after this enhancement, their email addresses will automatically be re-formatted similarly to email addresses from public email providers—unless their domains are authenticated.

    For example, if users send emails from sales@zylker.com, recipients will see the emails in their inboxes as being sent from sales.zylker.com@zohocrm-2380248-sdus09.com, assuming zylker.com has not been authenticated.

    This mandate is to improve Zoho CRM's sender reputation and to meet the highest industry standards. As Zoho CRM uses a shared back-end infrastructure to send all of our user's emails, it's essential that customers with authenticated domains and healthy email-sending practices are protected from the damage to our infrastructure caused by accounts using non-authenticated domains to send emails.

    This is important to note unless all domains that are used to send emails from your Zoho CRM accounts are authenticated, this will affect your existing emails, workflows, and business communication that you may have currently set up.
Points to be noted:
  • The Email Authentication page (Setup > Channels > Email > Email Deliverability > Email Authentication) will display all the domains that are accessible within your account, determined by the email addresses found in both your active user's list and organizational email addresses under Available domains. Users should ensure that they have authenticated their email-sending domains from the list of available domains.
  • The mentioned email deliverability changes do not apply when users send emails through their configured mailbox or when an email relay server is set up for an account.

Release plan:

  • Recommended domain authentication and sender address change for non-authenticated domains have now been released for all new organizations who sign up for Zoho CRM.
  • For existing users who send or configure email notifications from inside Zoho CRM, we will soon have in-product reminders and alerts informing about these changes.
That's all about the enhancements. Let us know your thoughts and feedback in the comments below.


Thanks! 
Sohel

    Access your files securely from anywhere









                          Zoho Developer Community




                                                • Desk Community Learning Series


                                                • Digest


                                                • Functions


                                                • Meetups


                                                • Kbase


                                                • Resources


                                                • Glossary


                                                • Desk Marketplace


                                                • MVP Corner


                                                • Word of the Day


                                                • Ask the Experts





                                                          Manage your brands on social media



                                                                Zoho TeamInbox Resources



                                                                    Zoho CRM Plus Resources

                                                                      Zoho Books Resources


                                                                        Zoho Subscriptions Resources

                                                                          Zoho Projects Resources


                                                                            Zoho Sprints Resources


                                                                              Qntrl Resources


                                                                                Zoho Creator Resources



                                                                                    Zoho CRM Resources

                                                                                    • CRM Community Learning Series

                                                                                      CRM Community Learning Series


                                                                                    • Kaizen

                                                                                      Kaizen

                                                                                    • Functions

                                                                                      Functions

                                                                                    • Meetups

                                                                                      Meetups

                                                                                    • Kbase

                                                                                      Kbase

                                                                                    • Resources

                                                                                      Resources

                                                                                    • Digest

                                                                                      Digest

                                                                                    • CRM Marketplace

                                                                                      CRM Marketplace

                                                                                    • MVP Corner

                                                                                      MVP Corner







                                                                                        Design. Discuss. Deliver.

                                                                                        Create visually engaging stories with Zoho Show.

                                                                                        Get Started Now


                                                                                          Zoho Show Resources


                                                                                            Zoho Writer Writer

                                                                                            Get Started. Write Away!

                                                                                            Writer is a powerful online word processor, designed for collaborative work.

                                                                                              Zoho CRM コンテンツ



                                                                                                Nederlandse Hulpbronnen


                                                                                                    ご検討中の方




                                                                                                          • Recent Topics

                                                                                                          • Is there API Doc for Zoho Survey?

                                                                                                            Hi everyone, Is there API doc for Zoho Survey? Currently evaluating a solution - use case to automate survey administration especially for internal use. But after a brief search, I couldn't find API doc for this. So I thought I should ask here. Than
                                                                                                          • Using IMAP configuration for shared email inboxes

                                                                                                            Our customer service team utilizes shared email boxes to allow multiple people to view and handle incoming customer requests. For example, the customer sends an email to info@xxxx.com and multiple people can view it and handle the request. How can I configure
                                                                                                          • Task Due Date greater than 10 years.

                                                                                                            We use recurring tasks in Projects where every week, month, year etc Some of our projects are greater than 10 years and we are unable to set a new due date because the difference between start date and due date is greater than 10 years. As an example
                                                                                                          • The sending IP (136.143.188.15) is listed on spamrl.com as a source of spam.

                                                                                                            Hi, it just two day when i am using zoho mail for my business domain, today i was sending email and found that message "The sending IP (136.143.188.15) is listed on https://spamrl.com as a source of spam" I hope to know how this will affect the delivery
                                                                                                          • Changing a Single-Line Text field into a Multi-line Field without losing data

                                                                                                            Is it possible to change a Single-Line Text field into a Multi-line Field without losing data. I have a module with data for which I would like to change a single-line field into a multi-line field but I'm worried it might delete the pre-existing da
                                                                                                          • Webhook - Google Sheets

                                                                                                            I have 2 forms that are both integrated with Google Sheets. I've set up a webhook to pull form 1 data from Google Sheets to prefill data in Form 2. The issue I have is that the forms name fields are First Name & Last Name but the Google sheets integration
                                                                                                          • Verified Mark Certificate

                                                                                                            Hello Dears, Can anyone help and check my mail or direct me to the desired person who can add the verification tag to my mail https://www.zoho.com/blog/mail/email-authentication-with-bimi.html
                                                                                                          • Appointment booking is temporarily unavailable

                                                                                                            Embeded Zoho booking page in my WordPress website. When someone starts a booking, after choosing time and date, an error appears before payment - "Appointment booking is temporarily unavailable due to restricted settings." Used the embeded code given
                                                                                                          • Cannot connect to 365 business calendar and Teams, says personal but it is not.

                                                                                                            hi I have a number of users connected to their 365 business accounts. Adding a new user and it thinks hes got 365 personal edition. He does not.... Anyone know what's going on. Trying for days now. Bookings go into his MS calendar but as its thinks its
                                                                                                          • Limited review (/questions) for Bookings 2.0

                                                                                                            Hi all, I'm writing this review of Bookings 2.0 for two reasons: 1) it may be of interest to others, and 2) I'd like to be corrected if I'm wrong on any points. It's a very limited review, i.e. the things that have stood out as relevant, and particularly
                                                                                                          • Zoho Bookings - Reserve with Google

                                                                                                            Does Zoho Bookings plan to to integrate with Reserve with Google?
                                                                                                          • Tip #3: How to change your booking page language

                                                                                                            Displaying your booking page in your target audience's language can greatly increase customer satisfaction. By speaking their language, you will help customers feel more comfortable scheduling with you and create a stronger connection with them. Let's
                                                                                                          • Zoho Books | Product updates | October 2025

                                                                                                            Hello users, We’ve rolled out new features and enhancements in Zoho Books. From iOS 26 updates to viewing reports as charts, explore the updates designed to enhance your bookkeeping experience. Zoho Books Updates for Apple Devices At WWDC 2025, Apple
                                                                                                          • Bigin Android app update: Zoho Books integration

                                                                                                            Hello everyone! We’re excited to introduce Zoho Books integration on the Bigin Android App. Once the integration is completed in the web(bigin.zoho.com), the Zoho Books tab will be visible in detail View of Contacts, Companies, and Pipeline records. The
                                                                                                          • Bigin Android app update: Alerts while creating tasks outside of working days, conflicting events and calls.

                                                                                                            Hello everyone! In the most recent version of the Bigin Android app, we have brought in support to display an alert if task is being scheduled outside of the working days. Also, when scheduling an event or call in the Activities module, a conflict alert
                                                                                                          • Email in each module

                                                                                                            We have a contact ,module which then has a link to customer assets which in turn the asset has a multiple link to service visits. When we link assets to customers we choose by name and it brings over the associate email via the lookup. Great feature.
                                                                                                          • Bigin update: Link email messages to pipeline records.

                                                                                                            Hello everyone! In the latest version of the Bigin iOS(v1.11.9) and macOS(1.8.9) app, we have brought in support for an option to link email to pipeline records. This helps you to view emails specific to a deal, especially when a contact is associated
                                                                                                          • Bigin Android app update: Custom buttons and widgets

                                                                                                            Hello everyone! We are excited to introduce custom buttons and widgets on the Bigin Android app. Widgets: A widget is a customizable UI component in Bigin that improves efficiency and user experience. It lets businesses embed components, streamline interactions,
                                                                                                          • Biometric Access Support on Zoho Vault Desktop App

                                                                                                            Is there any plans to add biometric authentication (fingerprint, face recognition) for Vault desktop apps (Windows/macOS) to enhance security and ease of access. I would love to hear other members view on this
                                                                                                          • Importation Tickets error

                                                                                                            Hi, I'm newbie here 🤓 So, i'm importing data from csv, but when I try advance to mapping fields the importer tool show this message: Previously I try import, other data, and not show errors in this step. Some ideas? Best Regards,
                                                                                                          • Zoho Sheet for Desktop

                                                                                                            Does Zoho plans to develop a Desktop version of Sheet that installs on the computer like was done with Writer?
                                                                                                          • Create Assemblies API Assistance

                                                                                                            I am using the Create Assemblies API documented here https://www.zoho.com/inventory/api/v1/compositeitems/#create-assemblies , however I'm getting the following error. {"code":1048,"message":"Sorry, there was an internal error. Please contact {0} for
                                                                                                          • Zoho Sheet - Desktop App or Offline

                                                                                                            Since Zoho Docs is now available as a desktop app and offline, when is a realistic ETA for Sheet to have the same functionality?I am surprised this was not laucned at the same time as Docs.
                                                                                                          • Collective-booking event not added to all staff calendars

                                                                                                            We assign two staff to certain events. When the client books this event, it adds it to one staff calendar (the 'organiser') but not the other. How can I ensure all staff assigned to a collective booking get the event in their calendar? (A side note: it
                                                                                                          • Project Management Bulletin: October, 2025

                                                                                                            Every need leads to innovation. Project Management tools were developed out of sheer necessity to drive large projects. With wide usage, the specifications grew precise, and so did the refinement. Over years we’ve crafted one of the best project management
                                                                                                          • Email Recall Feature In Zoho Mail Which Should Also Work For Outside Organisation Members

                                                                                                            Add a feature to recall or undo sending an email within a configurable short time window (e.g., 30 seconds to 2 minutes) after hitting send, similar to Gmail’s undo send. Currently the sent email can not be recall If the recipient is not from within your
                                                                                                          • Zoho Sheets saying locked when not locked

                                                                                                            Zoho Sheets won't let me add more rows to sheet because it's saying the sheet is locked, but the sheet is not locked. I tried using a different browser but I still have the same issue.
                                                                                                          • Identifying and Merging Accounts with Similar (Non-Exact) Names

                                                                                                            Hello everyone, I’m aware of the built-in deduplication feature in Zoho CRM that allows merging records with exactly matching values for selected fields. However, I’m running into a situation where our migrated data contains multiple variations of the
                                                                                                          • Option for super admin to recover the deleted chats in Zoho Cliq

                                                                                                            Currently, in Zoho Cliq, if a user accidentally deletes their chats, there is no option for the Super Admin to recover or view those deleted messages. I believe it would be helpful if Super Admins had a recovery option, perhaps within a certain time frame,
                                                                                                          • Zoho CRM iOS app updates: the Homepage, Zoho Survey integration, and support for multiple file uploads in subform

                                                                                                            Hello everyone! The Zoho CRM mobile app continues to evolve to bring you a smoother and more powerful CRM-on-the-go experience. We're excited to share some important updates now available in the iOS app. Here's what's new: Homepage support Zoho Survey
                                                                                                          • I am trying to integrate my module in sandbox environment to add data via API

                                                                                                            I went through the documents and tried to setup the API for adding the module via the api but the problem is the token setup is done on "https://accounts.zoho.in/oauth/v2/token" domain and the bulk write is done on "https://content.zohoapis.com/crm/v8/upload"
                                                                                                          • Open "Live Chat" from a hyperlink?

                                                                                                            Hi, I often write paragraphs and text on our company website, and usually say you can get in touch with us via live chat. Can the chat window be triggered to pop open without clicking the chat graphic in the bottom window, and use it in a hyperlink? ie:
                                                                                                          • Is anyone else having trouble saving a custom image in their email signature, or is it just me?

                                                                                                            When I try to save the image I get an error that says "Operation Failed" I opened a support ticket two weeks ago and received a response that it would be debugged, but it still isn’t working
                                                                                                          • Setting up primary mobile number.

                                                                                                            Hi Sir Earlier I joined IIFL team and got an organizational email of zoho services. Later i quit and now my account is deactivated with IIFL but i am unable to link my mobile number to my own email id with zoho.
                                                                                                          • Add Custom Reports To Dashboard or Home Tab

                                                                                                            Hi there, I think it would be great to be able to add our custom reports to the Home Tab or Dashboards. Thanks! Chad
                                                                                                          • Account in Quick View Filter

                                                                                                            I have a report that I often run against a specific Account. Every time, I have to go into the edit menu and change the Advanced Filter. I would prefer to use the Quick View Filter, but it does not allow me to use the one and only field that makes any
                                                                                                          • In arattai received message can't be deleted

                                                                                                            The issue has been noticed in following: arattai app (Android) arattai app (Window) arattai web While the message posted by me may be deleted, the ones received from others can't be. The item <Delete> change to <Report> when the message is a received
                                                                                                          • Zoho sheet for desktop

                                                                                                            Hi is zoho sheets available for desktop version for windows
                                                                                                          • Zoho Analytics - Make text clickable in underlying data

                                                                                                            Hi Community, I have a simple sales report based on a Invoice query table. I have included a link on to each invoice on the table and sent the Invoice number URL to the link. This works find in the query table, but when I click underlying data on the
                                                                                                          • Tables for Europe Datacenter customers?

                                                                                                            It's been over a year now for the launch of Zoho Tables - and still not available für EU DC customers. When will it be available?
                                                                                                          • Next Page