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 Free, Standard, 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

    • Recent Topics

    • How to assign one Manual to multiple Spaces?

      Hello, I have two spaces, one called tech knowledge and the other one called HR knowledge. I have a manual that is called HR tech. I want to assign this manual to HR knowledge and tech knowledge. How should I do that?

    • How can I assign courses to Spaces?

      How can I make courses show up here in this space?:

    • When will Zoho Learn be able to support SCORM files on the mobile app?

      When I click the SCORM content, I just get a message saying it's not possible yet. Yet implies that it will be coming soon. All I'm asking for is a realistic timeline so I know whether or not to invest my time in using it. If it will be soon, then I will

    • Announcing new features in Trident for Windows (v.1.35.6.0)

      Hello Community! Trident for Windows just got better with an update that makes working with your emails even more efficient. Let’s dive into what’s new! Work with PST files more efficiently. You can now do more than just view mounted PST files. You can

    • Looking for best practices to import data from SAP Business One (on-prem) into Zoho Analytics via Zoho DataPrep / Databridge — daily automated schedule

      Hi all, I’m using SAP Business One on-prem (SQL Server / or HANA — depending on DB backend) as our ERP. I want to build a pipeline that, every morning at 9:00 AM IST: pulls transactional data (invoices, customers, products, stock, etc.) from SAP B1, loads

    • Marketing Tip #9: Track your traffic sources

      Not all marketing channels work equally well. Knowing whether your visitors come from Google, Instagram, or email helps you focus on what actually drives sales. Try this today: Check your Zoho Commerce reports or connect Zoho PageSense to see your top

    • Google Analytics import data inaccurate (as of October 11, 2025)

      We have Zoho Analytics connected to GA4 to import daily event data. This has been running without issue for a couple of years. However, a month ago we started noticing discrepancies. All data until October 10 lines up perfectly - October 11 onward is

    • E-Invoicing in Belgium with Zoho Billing

      Starting January 1, 2026, Belgium is introducing mandatory electronic invoices (e-invoicing) for all B2B transactions between VAT-registered businesses. Invoices and credits notes must be exchanged in a prescribed digital format. How E-Invoicing works

    • Zoho Voice lance BYOC (Bring Your Own Carrier) : intégrez votre opérateur

      Pour accompagner sa croissance, une entreprise a besoin d’une infrastructure téléphonique flexible et évolutive. Les solutions de téléphonie s’adaptent aux exigences du centre de contact, tout en intégrant aisément les opérateurs locaux de votre choix.

    • Zoho Recruit Slow and Freezing on all screens

      We have had an issue with Zoho Recruit for weeks being extremely slow and at times freezing.  We have 100 mega internet, and I went into each computer and updated the virtual memory so there is more available.  Also restarted all computers daily.  Still having the issues.  Almost unable to work.

    • Prevent accidental duplicate entry of Customer Ordersome

      Zoho Support has confirmed that Zoho currently does not have any method (using Deluge, flow or any other method) to alert a user when a sales order has been entered twice using the same customer reference number (i.e. a duplicate). Most ERP platforms

    • Zoho Books | Product updates | November 2025

      Hello users, We’ve rolled out new features and enhancements in Zoho Books. From translating email notification templates to the new transaction locking restrictions, explore the updates designed to enhance your bookkeeping experience. Making Tax Digital

    • Insert Image into Notebook page

      Prior to today, I could add images to my notebook pages. Today when I tried to do this I got an error message that said something like, "There's been a problem on our end. Try again later." So, I've tried all the ways I know how, but I can't insert an

    • 【開催報告】名古屋 ユーザー交流会 Vol.2 2025/11/21 Zoho Analytics / Inventory で実現する在庫の"未来予測"

      ユーザーの皆さま、こんにちは。コミュニティチームの中野です。 11/21(金)に名古屋 ユーザー交流会 を開催しました。 本投稿では、当日実施したセッションの様子及び投影資料をお届けします。 会場にて参加できなかった皆さまも、ぜひご参照ください。 （Zoho 社員セッションの登壇資料については、11/28(金)開催の東京回の開催報告で共有いたします） 今年2回目の開催となる名古屋 ユーザー交流会では、株式会社エンツナクリエイト 野末さんによる Zoho Analytics / Inventory

    • Is there a way to automatically add Secondary Contacts (CCs) when creating a new ticket for specific customers?

      Some of our customers want multiple contacts to receive all notifications from our support team. Is there a way to automatically add secondary contacts to a ticket when our support team opens a new ticket and associates it with an account? This would

    • Improved RingCentral Integration

      We’d like to request an enhancement to the current RingCentral integration with Zoho. RingCentral now automatically generates call transcripts and AI-based call summaries (AI Notes) for each call, which are extremely helpful for support and sales teams.

    • Edit Pinned Comments in Zoho Desk

      It's great that private comments can now be pinned to the top of the ticket but what would be extremely helpful would be to allow for the pinned comment to be edited vs. having to find the comment in the ticket to edit it.

    • Updating Secondary Contact (CCs)

      We use Zoho Forms to capture the user request and integrated with Zoho Desk to raise tickets. Active Microsoft login is captured in our Zoho forms and registered as Primary contact in Zoho desk ticket. We also an have an option to raise ticket on behalf

    • blank page after login

      blank page after logging into my email account Thanks you

    • WriterTh

      After every space Writer goes to capital letters mode in my Android tablet. The cap mode stays till the second letter is typed in the word then it comes to normal mode.

    • Zoho writer unable to merge documents to PDF with basic fonts in Hebrew or fonts from my computer

      I created several forms that will be merged into PDF files through Zoho Writer and I am unable to receive the PDF in the basic fonts of the Hebrew language or in the fonts I have on my computer. The writer exports to PDF an exchange font that looks very

    • I have already created some Bots, Commands, and Widgets in Cliq, but I am still not seeing the “Create Extension” option in my account. Could you please help me enable or access this option?

    • How to setup DKIM / SPF in Zoho Mail

      Hello there! I'm having a hard time understanding how to setup the TXT records for SPF and DKIM with Zoho Mail. I'm following the instructions here: https://www.zoho.com/campaigns/help/setup-spf-dkim.html Specifically, when it comes to the value for the

    • Cliq iOS can't see shared screen

      Hello, I had this morning a video call with a colleague. She is using Cliq Desktop MacOS and wanted to share her screen with me. I'm on iPad. I noticed, while she shared her screen, I could only see her video, but not the shared screen... Does Cliq iOS is able to display shared screen, or is it somewhere else to be found ? Regards

    • Infinite loop of account verification

      Hi I can't do anything on my zoho account.  I always get this message Hi Sheriffo Ceesay As a security measure, you need to link your phone number with this account and verify it to proceed further. When ever I supply the details, it displays that the number is associated with another account. I don't have any other account on zoho so this is really annoying. 

    • How we cut CRM updates from ~20 minutes down to 2, our real workflow

      Updating the Zoho CRM after every call used to be one of the biggest time sucks for our team. By the time you write your notes, clean them up, fill in the fields, and log everything properly… you’ve easily lost 15–20 minutes per call. We started experimenting

    • Arattai App Features Update

      1. Offline Messaging & Sync Enable users to compose messages without internet and deliver them automatically via peer-to-peer methods (Bluetooth/WiFi Direct) when nearby users are available. This would be a game-changer for rural India with unreliable

    • Zoho Books Sandbox environment

      Hello. Is there a free sandbox environment for the developers using Zoho Books API? I am working on the Zoho Books add-on and currently not ready to buy a premium service - maybe later when my add-on will start to bring money. Right now I just need a

    • How to add Product Add-Ons, Mandatory Forms, and Auto-Save Address in Zoho Commerce

      Hi all, I need help setting up several behaviors in Zoho Commerce. I can’t find the correct configuration options, so I want to confirm whether these are supported or if there is a workaround. 1. Product-Specific Add-Ons (Example: GWB Subscription) When

    • Request for Auto PO - Min–Max based Automated Purchase Feature

      Dear Zoho POS Team, I’m writing to request a feature enhancement that would significantly streamline inventory management for businesses using Zoho POS — particularly supermarkets, FMCG retail, and multi-store operations like ours. Feature Requested:

    • Zohomail

      Im trying to setup email address zoho

    • PROBLEMA

      Salve, non riesco a inviare email, e mi esce una tabela errore temporaneo. come posso risolvere il problema ?

    • Forever FREE Business Email with Zoho Mail

      Forever FREE Business Email with Zoho Mail: is it available?

    • Weekly Tips : Make collaboration effortless with Whiteboard in Zoho Mail

      Working with your team often means switching between emails, notes, and other applications just to explain an idea. Maybe you are trying to sketch a layout, plan a workflow, or quickly brainstorm ideas—with text alone, things can get confusing. So how

    • Formula field number of days between 2 dates

      Hi, I want to have a formula field which calculates the following: IF EndDate < TODAY and Oproep is true (this is a checkbox field) than EndDate - StartDate, otherwise TODAY - StartDate It should calculate the number of days How can I write this for

    • Tracking Snippet not working in Zoho Marketing Automation!

      First off, the fact that you have to wait about 12-24 hours for every response is terrible. How are we supposed to conduct business? Second, we have been trying for several days to get the Tracking Code Snippet in marketing automation to work, to no avail.

    • 'email address already exists'

      I deleted a user from my organization and want to use the same email address that user had, but the email address seems to still exist somewhere as I get 'email address already exists' when I try and create it. I have deleted the entire organization and

    • ZOHO reporting DKIM entries are not configured, when they have been configured and verified by 3rd parties

      Why is ZOHO reporting to my organisation users the following: "The DKIM entries in your domain's DNS records are not configured. Please contact your administrator for configuring DKIM to ensure optimal RSVP invite delivery." When I have configured the

    • Manage Bookings directly from Zoho Mail

      Greetings from the Zoho Bookings team! We’re introducing the new Zoho Bookings extension for Zoho Mail, designed to help you view appointments, copy time slots and share booking links without leaving your inbox. This integration brings scheduling right

    • My notes from the past 2 months have disappeared

      Hola, necesito ayuda urgente. Hoy, al iniciar sesión en mi Zoho Notebook como todos los días, me llevé una gran sorpresa al descubrir que todas mis notas de los últimos dos meses habían desaparecido. Estas notas son muy importantes para mí, ya que uso

    • Next Page