What are the new email authentication and unsubscribe requirements from Gmail and Yahoo for 2024?

Summary

In 2024, Gmail and Yahoo are enforcing new email requirements, especially for senders of 5,000+ daily emails. Key components are email authentication using SPF, DKIM, and DMARC; offering one-click unsubscribe (List-Unsubscribe header is key, RFC8058 preferred); and maintaining a low spam rate below 0.3%. The goal is to reduce spam and increase security. There's also a focus on easy unsubscription to reduce friction. Implementation may vary depending on the sender's size and existing practices.

Key findings

  • Authentication is Key: SPF, DKIM, and DMARC are fundamental for proving email authenticity.
  • One-Click Unsubscribe: List-Unsubscribe header is key. Prioritize RFC8058 for the best compatibility.
  • Low Spam Rate Required: Keep spam rates under 0.3%; tools like Google Postmaster Tools helps with this.
  • Bulk Senders Affected: The 5,000+ daily email threshold defines the primary target group.
  • Enforcement is New: These practices were encouraged but now actively being enforced

Key considerations

  • Documentation: Official documentation may contain inaccuracies.
  • Small Sender Challenges: Small businesses may need to take specific steps to comply.
  • Technical Expertise: Setting up authentication correctly requires technical expertise.
  • User Experience Matters: Ensure the unsubscribe process is easy and intuitive.
  • Ongoing monitoring: Monitor deliverability and spam rates consistently, as enforcements may change.

What email marketers say
25Marketer opinions

Gmail and Yahoo are implementing new requirements in 2024 primarily targeting bulk senders (over 5,000 emails daily) to improve email security and reduce spam. These requirements encompass email authentication using SPF, DKIM, and DMARC, providing a one-click unsubscribe option via List-Unsubscribe headers (ideally RFC8058), and maintaining a low spam rate (below 0.3%). The changes will affect how email is authenticated, how easily users can unsubscribe and the spam complaints received. The email authentication requirements are not new, but the enforcement is.

Key opinions

  • Authentication: Senders must authenticate email using SPF, DKIM, and DMARC. This helps verify the sender's identity and prevent spoofing.
  • One-Click Unsubscribe: A List-Unsubscribe header, ideally using RFC8058, is required to enable one-click unsubscription. This allows users to easily opt-out of receiving emails.
  • Spam Rate Threshold: Senders must maintain a spam rate below 0.3%. Exceeding this threshold can lead to emails being sent to spam or blocked.
  • Bulk Sender Focus: The new requirements primarily target bulk senders, those sending more than 5,000 emails per day.
  • Dual Implementation: Google and Yahoo are making coordinated efforts to implement similar requirements simultaneously.

Key considerations

  • Authentication Configuration: Properly configuring SPF, DKIM, and DMARC is crucial for compliance. This requires technical expertise and careful setup.
  • Unsubscribe Implementation: Implementing a one-click unsubscribe process that is easy for users to find and use is important. Consider using RFC8058 for best results.
  • Spam Rate Monitoring: Regularly monitor spam rates to ensure they remain below the 0.3% threshold. Implement strategies to reduce spam complaints.
  • Testing and Monitoring: Testing your email setup and monitoring deliverability are essential to ensure compliance and identify any issues.
  • Impact on Small Senders: Small senders may need to take extra steps to ensure they meet the new requirements, especially if they are using shared domains or email addresses.
Marketer view

Email marketer from Email Geeks questions whether the "one click unsubscribe" mentioned a literal one click unsubscribe or are they more talking about list unsubcribe?

May 2022 - Email Geeks
Marketer view

Email marketer from Email Geeks says its about adding list-unsubscribe headers to enable “one click” unsubscribe within the email app. The preferred method is RFC8058, mailto is acceptable. Although I am really, really liking the idea of enforcing RFC8058

December 2021 - Email Geeks
Marketer view

Email marketer from Reddit suggests that to comply with the new requirements, senders must implement email authentication (SPF, DKIM, DMARC), provide an easy one-click unsubscribe option, and keep their spam rate under 0.3%.

February 2024 - Reddit
Marketer view

Email marketer from Litmus explains that the new requirements focus on authenticated sending, easy unsubscription, and acceptable spam rates. These apply to senders of 5,000 or more emails per day.

April 2023 - Litmus
Marketer view

Email marketer from ActiveCampaign explains that to meet the new standards, senders need to authenticate their email using SPF, DKIM, and DMARC. They also need to implement one-click unsubscription and maintain a spam rate below 0.3%.

May 2022 - ActiveCampaign
Marketer view

Email marketer from Stack Overflow shares that the new requirements primarily target bulk senders, meaning those sending over 5,000 emails per day. These senders need to implement SPF, DKIM, and DMARC authentication, provide one-click unsubscribe options, and maintain low spam complaint rates.

October 2022 - Stack Overflow
Marketer view

Email marketer from Email Geeks disagrees with Brian and says its not true that Gmail is rejecting all mail which is not authenticated

October 2023 - Email Geeks
Marketer view

Email marketer from Email Geeks mentions that Google is talking about both list-unsub headers AND a link in the body.

July 2024 - Email Geeks
Marketer view

Email marketer from Email on Acid outlines the new requirements including authenticating your email with SPF, DKIM, and DMARC, implementing one-click unsubscription, and monitoring your spam rate to stay below 0.3%. They also recommend testing your setup.

December 2023 - Email on Acid
Marketer view

Email marketer from GMass Blog mentions that the new requirements from Gmail and Yahoo for 2024 mandate authentication, a one-click unsubscribe, and keeping spam rates under 0.3% for bulk senders.

February 2024 - GMass Blog
Marketer view

Email marketer from Email Geeks says to pretend you are over 5000. It’ll help no matter what. And DMARC isn’t the only thing senders have to consider as they near 5K, but one-click list-unsubscribe header as well. They are looking at everything no matter the volume so trying to stay “below” the threshold won’t necessarily help.

June 2024 - Email Geeks
Marketer view

Email marketer from Email Geeks shares a link to Gmail's announcement of upcoming changes to email requirements in Q1 2024: <https://blog.google/products/gmail/gmail-security-authentication-spam-protection/>

January 2024 - Email Geeks
Marketer view

Email marketer from Mailjet summarizes that to meet the new Gmail and Yahoo requirements for 2024, it's essential to authenticate your emails with SPF, DKIM, and DMARC, and provide a one-click unsubscribe option in your emails.

April 2024 - Mailjet
Marketer view

Email marketer from Email Geeks agrees that the documentation seems outdated but highlights the "Auth" section as a sign of stricter authentication requirements. Also mentions the potential for rejecting senders above the acceptable spam rate threshold.

February 2023 - Email Geeks
Marketer view

Email marketer from Email Geeks says what I really appreciate is Gmail sharing a number to give me as a sender an idea of what level is dangerous (>0.1%) and what is critical (>0.3%). it really helps me a lot, as I now know how safe I am at least in terms of spam rate.

January 2022 - Email Geeks
Marketer view

Email marketer from MailerQ Blog explains that Google and Yahoo are tightening requirements to require authentication (SPF, DKIM, DMARC), easy unsubscription (List-Unsubscribe header), and low spam rates (<0.3%).

July 2021 - MailerQ Blog
Marketer view

Email marketer from Email Geeks states that Gmail started rejecting email that is not authenticated a few weeks ago.

August 2022 - Email Geeks
Marketer view

Email marketer from Email Geeks says it feels like went from should probably be doing this to "you have to be doing this". That is what I take from it.

November 2022 - Email Geeks
Marketer view

Email marketer from Email Geeks shares a link to Yahoo's announcement, emphasizing that this is not just Google making these changes. <https://blog.postmaster.yahooinc.com/post/730172167494483968/more-secure-less-spam|this>

October 2024 - Email Geeks
Marketer view

Email marketer from Email Geeks states that they will require list-unsubscribe headers and that Google will likely do the same.

February 2023 - Email Geeks
Marketer view

Email marketer from Email Geeks says that the announcement is really just reiteration of best practices, but moving from “we’ve recommended best practices for a while now. up next we’re requiring best practices”.

April 2021 - Email Geeks
Marketer view

Email marketer from Email Geeks highlights the potential impact of Gmail's DMARC quarantine enforcement policy on small senders who impersonate Gmail From: headers.

November 2021 - Email Geeks
Marketer view

Email marketer from Email Geeks says that means if you were already at this spam rate or higher you would probably not be getting inbox even before these changes and eventually blocked. Meaning basically they still care about spam rates even if you are authenticated. So keep watching it but they aren't going to throw you out with the bath water over some occasional spikey days.

February 2025 - Email Geeks
Marketer view

Email marketer from Campaign Monitor notes that the changes mean bulk senders (over 5,000 emails a day) must authenticate their email, provide easy unsubscription, and keep spam rates low.

June 2024 - Campaign Monitor
Marketer view

Email marketer from Email Geeks questions whether senders will understand that "one click" unsubscribe may refer to List-Unsubscribe, potentially causing confusion.

May 2022 - Email Geeks

What the experts say
17Expert opinions

Experts generally agree that Gmail and Yahoo's new email requirements for 2024 focus on authentication, easy unsubscription, and low spam rates, especially for bulk senders. The requirements involve setting up SPF, DKIM, and DMARC for authentication, implementing one-click unsubscribe options (List-Unsubscribe, preferably RFC8058), and keeping spam rates below 0.3%. Experts note that most of these are best practices already, but the enforcement is new. Small businesses might face challenges, and Google's documentation may have inaccuracies. There's also some confusion about transactional emails needing unsubscribe options.

Key opinions

  • Authentication Methods: SPF, DKIM, and DMARC are essential for authentication.
  • One-Click Unsubscribe: Easy one-click unsubscribe options via List-Unsubscribe headers (RFC8058 preferred) are required.
  • Spam Rate Threshold: Spam rates must be kept below 0.3%.
  • Bulk Sender Focus: The primary focus is on bulk senders (over 5,000 emails daily).
  • Shared Pools PTR records: PTR records are not an issue for shared pools if configured correctly.

Key considerations

  • Documentation Accuracy: Google's documentation may contain inaccuracies or be vague.
  • Small Business Impact: Small businesses may face challenges due to lacking their own domains or technical expertise.
  • Transactional Emails: There's uncertainty whether transactional emails require unsubscribe options.
  • Implementation Complexity: Implementing DMARC and List-Unsubscribe-Post may require some development effort, particularly on older platforms.
  • Understadning of Spam rates: Understand the complaints are receiver specific and based on inbox placement, not simply on total sends.
Expert view

Expert from Spamresource responds that The exact impact of not complying with Google and Yahoo's new requirements varies, but the main issues are authentication (SPF, DKIM, DMARC), one-click unsubscribe, and staying below spam complaint thresholds. Senders who do not meet these requirements risk having their messages sent to spam folders or blocked entirely.

April 2024 - Spamresource
Expert view

Expert from Word to the Wise explains that bulk senders must authenticate, implement one-click unsubscribe, and keep spam rates low. For authentication this involves setting up SPF or DKIM, ensuring valid forward and reverse DNS records, setting up DMARC, and aligning the From: header with SPF or DKIM.

February 2022 - Word to the Wise
Expert view

Expert from Email Geeks points out the vagueness and inaccuracies in Google's documentation regarding the new requirements, particularly concerning one-click unsubscribe and SPF.

September 2021 - Email Geeks
Expert view

Expert from Email Geeks says that requiring DMARC and List-Unsubscribe-Post are the only things even slightly outside that, and List-Unsubscribe-Post is the only thing that might require some development effort on older platforms.

July 2021 - Email Geeks
Expert view

Expert from Email Geeks mentions that Google is explicitly talking about a visible unsubscribe link in the body, then linking to a (broken) description of List-Unsubscribe headers, which is confusing.

March 2024 - Email Geeks
Expert view

Expert from Email Geeks lists the bullet points for email authentication requirements for all senders except the smallest, including SPF/DKIM setup, valid forward/reverse DNS records, keeping spam rates below 0.3%, following the Internet Message Format standard, avoiding impersonation of Gmail From: headers, adding ARC headers for forwarding, DMARC setup, DMARC alignment for direct mail, and enabling one-click unsubscribe.

April 2023 - Email Geeks
Expert view

Expert from Email Geeks agrees that most of the requirements seem like things that should already be happening, and the rest is uncontroversial.

March 2023 - Email Geeks
Expert view

Expert from Email Geeks says that PTR records are not an issue for shared pools. Just give each IP a hostname in an ESP-controlled domain.

May 2021 - Email Geeks
Expert view

Expert from Email Geeks suggests that most small businesses using platforms like Klaviyo, CC, or Mailchimp can comply with the new requirements easily enough.

November 2021 - Email Geeks
Expert view

Expert from Email Geeks provides a link to a blog post about the new requirements for bulk senders: <https://wordtothewise.com/2023/10/new-requirements-for-bulk-senders/>.

December 2021 - Email Geeks
Expert view

Expert from Email Geeks believes that the really big SaaS providers will continue to evade the new rules by using their own domains and authentication.

January 2024 - Email Geeks
Expert view

Expert from Email Geeks says to not think of the 5k emails a day as a magic threshold, instead think of it as “Am I a big, grown up girl ESP that sends lots of email, or am I a little startup or hobbyist running on a dodgy legacy platform?”.

December 2024 - Email Geeks
Expert view

Expert from Email Geeks says if you’re following basic best practices already, not at all. The bullet point list of requirements is something you can use as a checklist to make sure you are.

October 2024 - Email Geeks
Expert view

Expert from Email Geeks clarifies that Gmail will likely publish a quarantine policy for gmail.com.

May 2021 - Email Geeks
Expert view

Expert from Email Geeks says “Do we need to offer an unsubscribe option on our transactional emails?” is probably a good question, though.

December 2023 - Email Geeks
Expert view

Expert from Email Geeks explains that small businesses might face challenges because they often lack their own domain or don't use it for email, and many use @gmail.com addresses, which will be problematic with the new policies.

March 2021 - Email Geeks
Expert view

Expert from Email Geeks says 0.3% is not a new number and it's not even a new number coming from the ISPs! That was the old AOL threshold, too and also mentions that the 0.3% is based on complaints / mail going to the inbox and is receiver specific. It is not total complaints / total mail sent.

September 2021 - Email Geeks

What the documentation says
5Technical articles

Official documentation indicates that Gmail and Yahoo are introducing new requirements for email senders in 2024, primarily targeting those sending 5,000 or more messages daily. These requirements include authenticating email with SPF, DKIM, and DMARC; providing a one-click unsubscribe option via List-Unsubscribe headers (mailto: or https: URLs); and maintaining a spam rate below 0.3% as monitored through tools like Google Postmaster Tools. Non-compliance may result in emails being sent to the spam folder or outright rejection.

Key findings

  • Sender Threshold: Senders of 5,000+ daily emails are the primary target.
  • Authentication Standards: SPF, DKIM, and DMARC are required for email authentication.
  • Unsubscribe Mechanism: A one-click unsubscribe option via List-Unsubscribe header is mandatory.
  • Spam Rate Limit: Spam rate must stay below 0.3%.
  • Consequences of Non-Compliance: Failure to comply may lead to spam filtering or email rejection.

Key considerations

  • Technical Implementation: Correctly setting up SPF, DKIM, and DMARC requires technical expertise.
  • User Experience: The unsubscribe process must be simple and accessible for users.
  • Spam Monitoring: Regular monitoring of spam rates through tools like Google Postmaster Tools is essential.
  • Industry standards: Use recognised industry standards like RFC Editor to create one-click unsubscription.
Technical article

Documentation from RFC Editor describes how List-Unsubscribe header with a mailto: or https: URL for one-click unsubscription.

December 2024 - RFC Editor
Technical article

Documentation from AuthSMTP specifies the core requirements as implementing SPF, DKIM, and DMARC for authentication, providing a simple one-click unsubscribe process, and keeping spam rates reported in Google Postmaster Tools under 0.3%.

October 2022 - AuthSMTP
Technical article

Documentation from Google Workspace Updates explains that senders who send 5,000 or more messages in a single day must authenticate their email, ensure they have a one-click unsubscribe option, and keep spam rates below 0.3%.

July 2024 - Google Workspace Updates
Technical article

Documentation from Yahoo Inc. shares that they are requiring senders to authenticate their email using SPF, DKIM, and DMARC. Senders should also ensure that they're allowing users to easily unsubscribe from unwanted mail.

March 2024 - Yahoo Inc.
Technical article

Documentation from GlockApps summarizes the new rules, focusing on authentication (SPF, DKIM, DMARC), one-click unsubscribe, and maintaining a low spam rate below 0.3%. Also indicates the penalties will vary and can include spam foldering or rejection.

August 2021 - GlockApps