Google and Yahoo's 2024 email authentication requirements: A new era of security

Google and Yahoo's 2024 email authentication requirements: A new era of security

Greeting of the new year!


Starting February 2024, Gmail and Yahoo Mail are rolling out stringent email authentication requirements to combat malicious messages, reduce inbox clutter, thwart phishing attacks, diminish spam, and bolster data security.

Here are the basic protocols all email senders are required to follow:

 

Implement email authentication

Implement SPF (Sender Policy Framework) and DKIM (DomainKeys Identified Mail) protocols to prevent domain spoofing, a tactic often exploited by cybercriminals. SPF is a framework that allows email administrators to specify which mail servers are authorized to send emails on behalf of a particular domain.

DKIM adds a digital signature to an email message, ensuring that it has not been tampered with during transit. Both SPF and DKIM help make sure emails are genuine and haven't been tampered with, which is important for email security and trust.  

Maintain  low spam rates   

Google mandates the senders to maintain a spam rate below 0.3% (as measured by Google's postmaster tools) to ensure that your emails don't get flagged as unwanted or fraudulent. While Yahoo hasn't explicitly suggested a number, 0.3% is a safe bet to avoid getting flagged.

READ - Staying out of trouble in 2024: A look at email marketing laws and compliance 

You can ensure low spam rates by following basic steps like enabling double opt-in, verifying email lists, and cleaning up old/inactive email addresses, among others.

 For high-volume senders (> 5,000 messages/day)  

In addition to implementing SPF and DKIM, high volume senders are required to implement DMARC policy and conform to DMARC alignment.

  • DMARC policy

Implement DMARC (Domain-based Message Authentication, Reporting, and Conformance) to provide domain-level protection against email spoofing techniques used in phishing and other attacks. DMARC builds upon SPF and DKIM and allows businesses to publish policies that provide instructions to mailbox providers' recipient servers on how to handle unauthenticated emails sent from their domain.

  • DMARC alignment 

Ensure that messages pass DMARC alignment, which checks whether the sending domain's authentication methods (SPF and DKIM) align with the domains used in the email headers. This is the Return-Path value within email headers.

SPF, DKIM, and DMARC are already mandatory in order to send email campaigns in Zoho Campaigns.

  •  One-click unsubscribe    

Google recommends implementing a convenient one-click unsubscription feature for users. This single-click process is aimed at allowing Gmail recipients to easily unsubscribe from emails sent by large senders. Additionally, Google recommends that senders promptly process unsubscription requests within a two-day timeframe.

 

Zoho Campaigns and Zoho Marketing Automation are already in compliance with this recommendation. In our system, we include a one-click unsubscribe link in the header of every email. Users can effortlessly click on the unsubscribe link located next to the sender's address to unsubscribe from the organization promptly.

Gmail address as from address

This pertains to cases when the sender's email address for emails sent from Zoho Campaigns is a Gmail address.

What is the change?
Gmail will begin using a DMARC quarantine enforcement policy. DMARC allows domain owners to specify policies that instruct receiving email servers on how to handle messages that fail DMARC authentication.

What is the Impact?
This implies that emails sent with "gmail.com" as the sender (or from) domain will be quarantined by the recipient servers.

To prevent delivery issues and potential IP reputation damage, emails with a sender domain of "gmail.com" will not be triggered from Zoho Marketing Automation after February 1.

Please be aware that this limitation is specific to when gmail.com and googlemail.com is the sender domain. If you have a custom domain, such as zylker.com, hosted on Google Mailbox, then it will not be impacted by the new sender email limitation.

What is the resolution?
To resolve this situation, we encourage users to use their authorized business domain address as sender address, not a gmail address. In case you don't own a domain, you can purchase one from Zoho domains.

  • If you have created any email campaign using the Gmail address as the sender address, you'll not be able to send campaigns.

  • Scheduled campaign will be moved to the draft state after Feb 1

  • Campaigns that are in Draft state cannot be sent until the sender address is changed to a business specific email address.

  • W.r.t Workflows, we will not stop any workflows. We recommend users edit and change the sender address in case if you have used gmail address.

 What happens if you miss the deadline? 

Your emails may not be delivered to Gmail and Yahoo accounts. This in turn will impact your business, your ability to communicate with customers, and potentially affect customer engagement. We, at Zoho Campaigns, are already aligned with the new guidelines to ensure a seamless experience for our users. If you have any questions or concerns regarding these changes, please reach out to our support team at support@zohomarketingautomation.com. 

 

Note
:  We have hosted a online workshop for email authentication changes from Google and Yahoo. Watch the full video recording here. Please reach out to us support@zohomarketingautomation.com,  if you need any assistance in implementing email authentication measures in your marketing.

 

 

 


    • Sticky Posts

    • Marketer’s Space - Automating CRM Actions with Journeys – Part 2

      Hello marketers! Welcome back to another post in Marketer’s Space. In our previous post, we explored how CRM actions in Journeys help marketing and sales teams work together by nurturing CRM leads and pushing only engaged prospects back to sales. If you
    • Introducing automation and utility conversations in WhatsApp marketing

      We’re excited to announce the addition of two new features to our WhatsApp integration: Automation and Utility conversations. These enhancements will allow you to streamline your marketing efforts and engage with your customers more effectively by automating
    • Tip of the week 02 - The art of 'seeing' your leads

      What's the last page that your lead visited before signing up for your brand? What was the page that first convinced your lead to explore more about you? Where are your leads coming in from? Well, these are some perennial questions today's marketers live upon. And, knowing the answers to these questions is crucial, considering the vitality of leads in every business. In the journey of finding lead opportunities, it's important to understand that every detail about a lead is useful. While the channels
    • Zoho Marketing Automation Update: Topics, Contacts, and List Management

      At Zoho Marketing Automation, our highest priority is making it easier for you to use our product to accomplish your business goals. With that in mind, we are updating three of our pivotal features: Topic, Contacts, and List Management.   These existing
    • Important: Zoho MarketingHub is now Zoho Marketing Automation

      Hello Everyone,   We hope you all are doing well. We'd like to notify you that we have rebranded Zoho MarketingHub to Zoho Marketing Automation. We'll discontinue using the term "MarketingHub" from May 26, 2021. However, there will be no changes in the
      • Recent Topics

      • 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
      • Fill Colors

        Hello, Just curious, is it possible to manage the Used and standard colors in the fill drop down menu ? I would like to change/edit them is possible to colors I frequently use. Thanks for you reply, Bruce
      • Is there a way to generate a virtual meeting for a group service in Zoho Bookings?

        Are virtual meetings not supported for group services/meetings? I have integrated Zoom with one-on-one services, but I need a way to create an online group meeting. Thanks
      • Attachment reminder?

        My team and I often need to attach files to our messages, e.g. an explanatory screenshot or a shipping label. More often that I want to admit I mention the attachment but forget to actually attach it. Some email clients have a check-for-missing-attachments
      • Items Below Reorder Point Report?

        Is there a way to run a report of Items that are below the Reorder Point? I don't see this as a specific report, nor can I figure out how to customize any of the other stock reports to give me this information. Please tell me I'm missing something s
      • Markdown for Desk?

        Hi, my company wants to use markdown for formatting text in Desk (in all modules there, especially Tickets and Helpcenter). Zoho already offers use of markdown in several products (see https://help.zoho.com/portal/en/kb/backstage/microsite-guide/formatting-with-markdown/articles/formatting-with-markdo)
      • Multiple upload field CRM

        I desperately need the functionality to add more than one upload field to web to contacts form. How can I do this?
      • Client scripts for Zoho Books ?

        Good day everyone, I am looking for a way to be able to interact with the Quotes and Invoices as they are being created. Think of it like Zoho client script in Zoho CRM. But for the life of me I dont see a way to do this. The issue with having function
      • Fillable template with dynamic tables?

        Is there a way to build a fillable template so that users can add rows to a table? To describe what I'm trying to accomplish the table has 3 sections; a header row, some number of rows with custom information, and a summary row with totals. I can't figure
      • Audio/video quality issues with Zoho Meeting – Any roadmap for improvement?

        Hi Zoho Team, We’ve been using Zoho Meeting for both internal and external meetings, and unfortunately, the experience has been consistently poor. The video and audio quality are so unreliable that it often renders meetings ineffective—especially with
      • Invoicing multiple expense items as a single line item

              My client would like me to invoice them for multiple expense items on a single line item on an invoice.  Can this be done?  I know I can import billable expenses to an invoice, but I don't know how to show them as a single line item or have them
      • 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
      • Tables improvement ideas / features

        Heya, I've been using Zoho Tables for a few months now and wanted to post some features that I think will be greatly beneficial for the tool: 1. Ability to delete a record in automation or move a record in automation. - Usecase: I move a record from one
      • Announcing offline payment modes for event tickets

        Hello everyone,   Collecting ticket payments from prospective attendees can be a tricky part of event planning. While Zoho Backstage has always allowed you to collect payments online as people buy tickets from your event microsite, we have now enabled
      • What is going on with GMail extension.

        Suddenly, it is popping up and saying "Please wait while we work our magic... 10%" and it sits there. Yesterday I waited for an entire hour call and it never got further. Today, it's not resolved. Is there a fix I can do? I've tried all the typical
      • Gmail is ramping up its email sender policy from November 2025

        Hello marketers, As you may be aware, Gmail introduced a guideline for bulk senders starting February 2024. If not, here's a quick refresher straight from Google: After this policy was announced first in 2023 and soft-implemented in February 2024, we
      • Collapsible Sections & Section Navigation Needed

        The flexibility of Zoho CRM has expanded greatly in the last few years, to the point that a leads module is now permissible to contain up to 350 fields. We don't use that many, but we are using 168 fields which are broken apart into 18 different sections.
      • Gmail is ramping up its email sender policy as of November 2025

        Hello marketers, As you may be aware, Gmail introduced a guideline for bulk senders starting February 2024. If not, here's a quick refresher straight from Google: After this policy was announced first in 2023 and soft-implemented in February 2024, we
      • Good news! Calendar in Zoho CRM gets a face lift

        Dear Customers, We are delighted to unveil the revamped calendar UI in Zoho CRM. With a complete visual overhaul aligned with CRM for Everyone, the calendar now offers a more intuitive and flexible scheduling experience. What’s new? Distinguish activities
      • Deluge Error Code 1002 - "Resource does not exist."

        I am using the following script in a Custom Button on a Sales Return. Basically, the function takes the information in the sales return (plus the arguments that are entered by the user when the button is pushed) and creates a return shipping label via
      • Zoho Analytics Export API

        Hi Team, I’m working on some integration tasks and wanted to confirm if it’s possible to retrieve a Zoho Analytics table as JSON data using a Deluge script. I’ve already stored my custom data from multiple sources and combined it into a single source.
      • Enhance Sign CRM integration

        Hello all, I'm working on a custom Deluge script to enhance the integration between Zoho CRM and Sign by using a writer merge template for additional flexibility. I want to replicate the post-sign document integration that exists between CRM and Sign
      • Item images

        Can we get an "On hover" expanded image for items please ?
      • Ability to Create and Manage YouTube Video Chapters in Zoho Social

        Hi Zoho Social Team, How are you? We would like to request an enhancement to Zoho Social that would allow users to create and manage YouTube video chapters directly within the platform. Currently, Zoho Social does not support manually adding chapters
      • What happens to my current site SEO if i opt for zoho creator?

        I have an existing website and I need to use Zoho creators for the rapid creation of my webpage creation. Currently, my IT team is creating the web pages, but I am concerned about the SEO of my current website if I shift to zoho will i loose it all?
      • Automatic Portal invite

        We have numerous customers we move through a blueprint in deals, when they get to a certain point we need to give them portal access, how can this be done through deluge or a workflow?
      • Preview Emails with Merge Fields before sending

        Hello, Are there plans to preview an email with merge fields before sending out? Currently, all you see in the preview are the merge field values, but before I send out the email I want to make sure the merge is working. Also, the saved emails only show
      • User Filter not selecting All Items

        We are encountering 2 issues when using the user filter. When users are trying to search using the filter option, the OK button is grayed out. Users have to unselect or make a change before it filters properly. 2. When filtering and the OK button works,
      • Support Nested JavaScript Variables in PageSense Pop-up Targeting

        Hello Zoho PageSense Team, I hope you're doing well. I’d like to request a feature enhancement for the PageSense pop-up targeting functionality. Current Limitation: Currently, PageSense pop-ups can be triggered using simple JavaScript variables. However,
      • Cannot Invert Axis for Rankings

        Hi there I want to be able to create a ranking graph in Analytics/BI, with 1 at the top of the Y axis, but I am unable to invert the axis. Super simple example in Excel below. Higher rankings need to be higher up on the graph to give the correct visual
      • How to copy value from a single line field into a picklist field within a module's subform?

        Hello there, I have a single line field in a module's subform. I would like the value in the field to automatically update a picklist field within the same subform (both have items with the same names). Is this possible via function? Unfortunately, workflows
      • Committed Stock and To Be Received Stock via API?

        Is it possible to retrieve Committed Stock and/or To Be Received Stock for an Item via the API? I want to use this information for calculating the amount of inventory needed to be purchased.
      • Creating Email template that attaches file uploaded in specific field.

        If there's a way to do this using Zoho CRM's built-in features, then this has eluded me! I'm looking to create a workflow that automatically sends an email upon execution, and that email includes an attachment uploaded in a specific field. Email templates
      • Marketer’s Space - Automate a Personalized Holiday Workflow with Zoho Campaigns

        Hello marketers, Welcome back to another post in Marketer’s Space! From Thanksgiving through Christmas, you have a flurry of opportunities to connect with your audience. In this post, we’ll see how you can plan an entire month-long automated workflow
      • Zoho Inventory Custom Field Update

        Hello All, In this post I am describing how can we Update the Custom Field Value in Zoho Inventory. // Get Org ID orgid = organization.get("organization_id"); // Field Value resvp = ifnull(item.get("purchase_rate"),null); // Record ID iid = item.get("item_id");
      • Sorting columns in Zoho Projects

        Hi, In project management best practice, sorting columns (ascending, descending) is an important tool. Sorting dates to see the order of tasks starting, sorting on priority or even on planned hours is a must for an efficient project control. Currently,
      • Zoho CRM - Calendar Cards View - Let Users Decide What Is Displayed On Calendar Entries

        Imagine planning your week of face-to-face meetings across three counties. You’re trying to group appointments by location to make the best use of your time, but Zoho CRM’s calendar doesn’t show where each meeting is happening. You’re left trying to remember
      • Explore the Redesigned Quotes Module in Zoho Billing

        Dear users, We’re excited to introduce a refreshed look for the Quotes details page in Zoho Billing! This update brings you a more efficient user interface experience without changing your existing workflow. We've enhanced layouts with organized tabs,
      • Updating custom fields in Zoho Projects

        Hi I am wondering if anyone has experience with custom fields in Zoho Projects. I am struggling to update the field using either deluge or the api endpoint. My code is: //custom_Map = map(); custom_Map = {"UDF_DOUBLE_1":"0.27"}; update_Map = map(); update_Map.put("custom_fields",custom_Map.toList());
      • Zoho Inventory - How to pay a supplier up front then receive multiple deliveries

        How do we manage situations where we pay a supplier up front, then the receive the products in increments? Example Workflow: Create Purchase Order > Receive Bill for full amount > Receive Items 2 or more deliveries. Currently, once a Bill is created against
      • Next Page