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.

At Zoho Campaigns, we already have a spam threshold of 0.1%, which adheres to the new guidelines Google and Yahoo are establishing.

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

In addition to implementing SPF and DKIM, high volume senders are required to implement to 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 handled within in order to send email campaigns in Zoho Campaigns.

  •  One-click unsubscribe    

Google suggests 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. In addition to that, the user can also place the unsubscribe link in the email content.

 

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 Campaigns 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@zohocampaigns.com.

 


    • Sticky Posts

    • Marketer's Space: Proven tips to improve open rates – Part II

      Hello Marketers! Welcome back to another post in Marketer's Space! We're continuing from where we left off a fortnight ago. We ended the previous post discussing the subject line, and we'll continue from there. Let's dive right in. Pre-header Pre-header
    • Tip of the week 03 - Sending emails in batches

      Today's marketers not only want their email marketing to be efficient, but also smart. For an email campaign, you may think you have all the essential elements for lead conversion—a big mailing list, an attractive template design, and the most-engaging message content, but after hitting the ‘send’ button, you may not get the expected conversions. Wondering why? Here’s one of the major reasons. Many marketers miss out on sending the email campaign the right way. Did you know that you should not be
    • Tip of the week 04 - Know about your recipients' 'prime open time.'

      In today's market, the importance of customer behavior is astounding, with a vast amount of research and resources going into finding how customers make decisions. The process of persuading your customers to open your email and click on your call-to-action becomes easy when you understand the psychology behind their behavioral traits. Time to turn into a psychologist! Let's get to the basics—you want your emails to resonate well with your recipients. So, what's the primary thing involved here? It's
    • Zoho Campaigns Expert Diaries on SoundCloud, Spotify, Apple Podcasts, and YouTube

      Hi email champs,  As email marketers, we find great lessons in each other's works—be it the subject lines that worked good, the design that was received well, or the CTA that had the maximum clicks. Email marketing encompasses a wide variety of topics spanning everything from creation and design to development and deliverability.  Here's when we from the Zoho Campaigns team found the need to build an email marketing community comprising of seasoned marketers and email geeks who can help each other
    • Email Deliverability Tip #3: Seal the deal with the preheader

      In the last post, we learned about the subject line. Today we'll be learning about the preheader. A preheader is the short text that follows the subject line in an email. The preheader is designed to hint at what your email message is all about. A good preheader should act as a second subject line and convince your contacts to open the email. Now, let's learn the best way to craft a preheader. Your subject line and preheader should work together and accurately convey the gist of your email. Keep
    • Recent Topics

    • RTL Support for Webforms in Zoho CRM

      Dear Zoho CRM Support Team, We are writing to request an enhancement to the webform builder functionality within Zoho CRM. Currently, to create a webform in a right-to-left (RTL) language, the entire CRM instance must be set to RTL, which can be inconvenient
    • Imported contacts succesful but contacts do not show up in Contacts

      I imported +300 contacts. I can see them in import history. When clicking on a contact in import history I see all the imported contact details for any given contact. So import seems to be successful.   However the imported contacts do not show up in the contacts tab. Not in All contacts, and not in a filtered view where they absolutely should show up. The search function also does not find any imported contact.   Help?
    • Saving sent email campaign as PDF

      I'm looking to add all campaigns sent to an archive folder in sharepoint. Is there anyway to accomplish this in Zoho Flow ? I'm falling at the first hurdle ... can I automatically save a sent campaign as a PDF to a folder location ?
    • 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 Social API for generating draft posts from a third-party app ?

      Hello everyone, I hope you are all well. I have a question regarding Zoho Social. I am developing an application that generates social media posts, and I would like to be able to incorporate a feature that allows saving these posts as drafts in Zoho Social.
    • Digest Novembre - Un résumé de ce qui s'est passé le mois dernier sur Community

      Bonjour chers utilisateurs, Avec l'arrivée du dernier mois de l'année, il est temps de résumer les activités de novembre dans la communauté Zoho France. Ce mois-ci, Zoho Webinar se dote de deux nouvelles intégrations ! La première est avec Zapier : connectez
    • E-Invoicing in Belgium with Zoho Books

      Starting January 1, 2026, Belgium is introducing mandatory electronic invoices (e-invoicing) for all B2B transactions between VAT-registered businesses. This means that invoices and credits notes must be exchanged in a prescribed digital format. How E-Invoicing
    • Announcing new features in Trident for Mac (1.30.0)

      Hello everyone! We’re excited to introduce the latest updates to Trident, bringing you a more seamless, intuitive, and secure communication experience. Let’s take a quick look at what’s new. Work with PST/EML files more efficiently. You can now do more
    • Open Form in Same window as Page from embedded Report

      I have a page that has an embedded report, as shown below. When I click the + sign to add a new record, the form shows up inside the page where the report was embedded. I know that I can add a custom action to the report grid or report detail view and
    • Pricing Strategies: #4 Counting on Discounts

      "Is there any chance I can get a little discount on this month's service?" Maya hears this almost every time at her fitness studio. She offers monthly subscription plans for various services, including yoga, strength training, wellness sessions, and personal
    • Introducing Query Workbench in Zoho CRM

      Hello everyone! We’re excited to announce the Query Workbench, a brand-new interface designed to improve developer experience of building Queries in Zoho CRM faster, simpler, and more intuitive. In the past, constructing queries required navigating across
    • Limitation with Dynamic Email Attachment Capture

      I've discovered a flaw in how Zoho Creator handles email attachments when using the Email-to-Form feature, and I'm hoping the Zoho team can address this in a future update. The Issue According to the official documentation, capturing email attachments
    • Add Customer in Books on Creator Form Submit Params

      Hi guys, Were integrating a creator app with books however what were doing is adding a books customer on submit of creator form.  We have some parameters but some fields aren't coping, All were seeing is the contact name in books,.  Any help of the params for this would be great. below is a sample of the script... response = zoho.books.createRecord("contacts", "XXXXXXXXX", { "contact_name" : input.Name, "address" : input.Email }); 
    • Weekly Tips: Protect Confidential Information with PGP in Zoho Mail

      We deal with confidential information almost every day, whether it is being sent out or received. Though emails sent using Zoho Mail are encrypted both during transit and at rest, attempts to access and steal your sensitive data are always a threat that
    • Suggestion : link KB with Accounts

      Hi Zoho teams.  I think it could be good to link KB articles with  : accounts in order to easily  find articles dedicated to some account specificities. I tried to use tags , but tags are free text with not easy way  to retrieve it directly from ticket or list article for one tag. Tickets : It would be a good way to measure usage of KB directly from ticket when we don't need to copy/paste KB in solution. And : Great Tool , keep going ! 
    • Drag and Drop in Creator Application

      Hi, I am in the planning phase of a new application and I would like to use 'Drag and Drop' in the user interface of my new Creator application that I am sketching out, but I don't seem to be able to find any reference that this is available to developers. In my instance I have table of entries and I would like to be able to allow users to move an entry to another table (much like you do in your own interface when creating a Pivot Table report. In addition, I would like the user to be able to re-order
    • Is there any way to integrate Zoho with Zapier?

      Is there any way to integrate Zoho with Zapier? I'd like to use it to create a workflow, sharing posts from our Wordpress website to all our channels.
    • Popular Articles Report

      From data to decisions: A deep dive into ticketing system reports Content management teams can use various metrics to assess the effectiveness of knowledge base articles, improve content quality, and ensure articles are regularly updated. Predefined article
    • Invoice Ref. Field

      Hello Team, Currently, the Invoice Ref. field is set to a Number type with a maximum limit of 9 digits. However, we often receive customer invoices that contain up to 12 digits. In some cases, the invoice reference includes not only numbers but also letters
    • 60 Days Into Zoho - Tiktok Branding Startup -7 Questions?!

      Wsp Everybody I co-own a TikTok Branding / Consulting Startup & have been using Zoho for the past 60 days - Am now looking to make our overall operations & processes more Efficient & Effective! Curious to know how others are using the platform & what's
    • Turning off the new UI

      Tried the new 'enhanced' UI and actively dislike it. Anyone know how to revert back?
    • XML format to import knowledgebase into Zoho Desk

      Hi, We just started to use Zoho Desk and want to import our knowledgebase from our old support system (Freshdesk) to Zoho Desk. Can anyone give us information about the format of xml file to import? There is no explanation on the related page.
    • Pushing Zoho People leave into Microsoft calendar: how to chose how "event" is shown (busy, free etc)

      Hi, how can I select how a "leave" event is pushed into Microsoft calendar? I want for leave "working elsewhere" to show as working elsewhere and NOT as busy.
    • Duplicate Accounts

      Hi There, I am looking for a solution, script, workflow or anything to solve an issue we have - in our customers section we have a rule that doesn't allow duplicates, however Zoho will allow customers with xxxxx and xxxxx PLC or LTD so effectivley we
    • Error with If formula

      I've got this super simple If formula, what is the reason for the error? If ( LEN(${Leads.Trial Slot Option}) == 3,'y','n') Syntax Error. Check the examples for any functions you're using to see if you formatted them correctly. Make sure your fields are
    • Announcing Multi-language Support in Zoho FSM

      Zoho FSM now speaks your language. The much-awaited multi-language support is now available in Zoho FSM. The following languages are supported in Zoho FSM: Dutch (Nederlands) English - United Kingdom English - United States French (français) French -
    • Creating multiple CRM leads from a Zoho Forms subform

      Hi all, We have a heavily used intake form that is used for new leads as a part of our intake. There is a subform that allows the lead to add additional team members, their titles and other basic info. That form submission creates a new Lead and the subform
    • Free webinar! Build smarter apps with Zoho Sign and Zoho Creator

      Hello, Bring the power of digital signatures to the apps you build in Zoho Creator! Connect Zoho Sign as a microservice and enable seamless e-signature workflows in your applications. This integration allows you to automate signing tasks using Deluge.
    • Restrict Addresses in Zoho Forms?

      In the address field, is there a way to restrict the addresses that auto populate (via Zoho Maps or Google Maps) to a specific state (I know it's possible with the country). Additionally, how often does the address in Zoho Maps get updated? Certain addresses
    • Weekly Tips: Secure your attachment downloads with Zoho Mail

      Safety is one of our main concerns, whether it’s about device security or online protection. We use tools like fingerprint scanners, facial recognition, and two-factor authentication to keep our devices and email accounts secure. We use methods like OTP
    • Resume Harvester: New Enhancements for Faster Sourcing

      We’re excited to share a set of enhancements to Resume Harvester that make sourcing faster and more flexible. These updates help you cut down on repetitive steps, manage auto searches more efficiently, and review candidate profiles with ease. Why we built
    • 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
    • Zoho One Unified Portal - Applications

      Hello, It is great to see the work on the New Unified Customer Portal. Thanks for that. The number of applications is limited though. It is now only around the Zoho Books ecosystem (Books, Expense...) and Zoho Social. = Are other applications planned
    • Marketing Tip #10: Start a customer loyalty program

      Winning a new customer is great, but keeping them coming back is even better. A loyalty program rewards repeat buyers with points, giving them more reasons to shop again. Over time, this builds trust and long-term relationships. Try this today: Set up
    • Zia Actions: AI-powered Workflow Automation for Faster and Smarter Execution

      Hello everyone, Updated on 12th Dec 2025 Zia actions for Workflow is available for Enterprise edition ONLY. These features are currently available in the following DCs: US, CA, EU, IN, and AU Email Auto reply and Content Generation are available as Early
    • Do Individual Forums within Categories, in Desk Community, Produce Their Own RSS Feed?

      Do Individual Forums within Categories, in Desk Community, Produce Their Own RSS Feed? If not, can anyone share a work-around that could help me get an RSS feed for individual category forums?
    • Incremental Migration Issue – Ticket Showing Resolution on Dec 9 Despite Urgent MX Cutover (Ticket ID: 152080262)

      I am experiencing an issue with Zoho Mail incremental migration from Rackspace. The initial full migration completed successfully, but the incremental migration for one mailbox failed immediately with the message: “User not exist” This appears to be a
    • Change Last Name to not required in Leads

      I would like to upload 500 target companies as leads but I don't yet have contact people for them. Can you enable the option for me to turn this requirement off to need a Second Name? Moderation update (10-Jun-23): As we explore potential solutions for
    • Resend Client Portal Invitation + View Email Delivery Status

      Hi Zoho Team, We hope you are doing well. We would like to request two important enhancements related to the Zoho Creator Client Portal invitation process. At the moment, when we add a user to the Client Portal, Zoho Creator automatically sends an invitation
    • Get user last login

      1. Is there a way to programmatically get the last user login to trigger certain workflows? 2. Is there a way to programmatically access the custom fields on a user's account?
    • Next Page