--- title: "Google and Yahoo are Making it Mandatory to Deploy DMARC For Anyone Sending More Than 5,000 Emails Per Day | DuoCircle" description: "Google and Yahoo are Making it Mandatory to Deploy DMARC For Anyone Sending More Than 5,000 Emails Per Day." image: "https://www.duocircle.com/images/og-default.png" canonical: "https://www.duocircle.com/blog/email-services/google-yahoo-mandatory-to-deploy-dmarc-for-more-than-5000-daily-emails/" --- Quick Answer Effective February 2024, Google and Yahoo require all senders to authenticate email and keep spam complaint rates under 0.3%, with stricter rules for senders sending more than 5,000 messages per day. All senders need SPF (TXT record listing authorized IPs and mail servers, with \`\~all\` softfail or \`-all\` hardfail) and DKIM (cryptographic public/private key signing). Bulk senders (>5,000/day) also need DMARC (p=none, p=quarantine, or p=reject), one-click unsubscribe, and From-header alignment with the SPF or DKIM domain. As of 2021 there were over 5 million unique DMARC records, but adoption of p=reject remains low: only 152 of 1,930 U.S. .edu domains, and 3.3% of .edu domains worldwide, were at reject. Domains without DMARC by the deadline risk delivery problems with Gmail and Yahoo. Google and Yahoo are Making it Mandatory to Deploy DMARC For Anyone Sending More Than 5,000 Emails Per Day Your browser does not support the audio element. [ Download episode](https://media.mailhop.org/duocircle/images/2023/11/Google-and-Yahoo-are-Making-it-Mandatory-to-Deploy-DMARC-For-Anyone-Sending-More-Than-5000-Emails-Per-Day.mp3) Share [ ](https://www.linkedin.com/sharing/share-offsite/?url=undefined%2Fblog%2Femail-services%2Fgoogle-yahoo-mandatory-to-deploy-dmarc-for-more-than-5000-daily-emails%2F "Share on LinkedIn") [ ](https://twitter.com/intent/tweet?text=Google%20and%20Yahoo%20are%20Making%20it%20Mandatory%20to%20Deploy%20DMARC%20For%20Anyone%20Sending%20More%20Than%205%2C000%20Emails%20Per%20Day&url=undefined%2Fblog%2Femail-services%2Fgoogle-yahoo-mandatory-to-deploy-dmarc-for-more-than-5000-daily-emails%2F "Share on X/Twitter") [ ](https://www.facebook.com/sharer/sharer.php?u=undefined%2Fblog%2Femail-services%2Fgoogle-yahoo-mandatory-to-deploy-dmarc-for-more-than-5000-daily-emails%2F "Share on Facebook") [ ](https://reddit.com/submit?url=undefined%2Fblog%2Femail-services%2Fgoogle-yahoo-mandatory-to-deploy-dmarc-for-more-than-5000-daily-emails%2F&title=Google%20and%20Yahoo%20are%20Making%20it%20Mandatory%20to%20Deploy%20DMARC%20For%20Anyone%20Sending%20More%20Than%205%2C000%20Emails%20Per%20Day "Share on Reddit") [ ](mailto:?subject=Google%20and%20Yahoo%20are%20Making%20it%20Mandatory%20to%20Deploy%20DMARC%20For%20Anyone%20Sending%20More%20Than%205%2C000%20Emails%20Per%20Day&body=Check out this article: undefined%2Fblog%2Femail-services%2Fgoogle-yahoo-mandatory-to-deploy-dmarc-for-more-than-5000-daily-emails%2F "Share via Email") ![Deploy DMARC](https://media.mailhop.org/duocircle/images/2023/11/check-dmarcrecord-6712.jpg) Email service providers have been constantly trying to cut off all possible ways hackers exploit to send phishing and spoofing emails. Recently, Google has made another announcement according to which any company sending more than 5,000 emails per day is required to deploy [DMARC](/resources/what-is-dmarc) to minimize the likelihood of recipients receiving fraudulent and phish-y messages. Moreover, incorporating the [one-click unsubscribing feature](https://www.sendblaster.com/1-click-unsubscribe/) has also **become mandatory** to ensure receivers aren’t bombarded with hundreds of unwanted marketing emails. Yahoo has also announced the requirement of similar mechanisms in place to send emails using its **mailing services**. Senders will be required to have strong email authentication protocols to be in place by February 2024 to [prevent phishing](/content/phishing-prevention/how-to-prevent-phishing-and-spoofing) and spoofing. ## Google and Yahoo’s Requisites for All Senders Anyone using Google and/or Yahoo’s email services is now obligated to abide by these **two rules**: ### 1\. Email Authentication Email authentication is the practice of verifying the **sender’s identity** to ensure they are actually who they are claiming to be. [SPF, DKIM, and DMARC](/email-security/comparison-between-spf-dkim-and-dmarc/) are three common [email authentication protocols](/content/spf-records/spf-record-breakdown) that help recipients’ mail servers filter legitimate and illegitimate senders. #### SPF SPF is short for [Sender Policy Framework](/content/sender-policy-framework). SPF involves the creation of an [SPF record](/content/spf-records/spf-record-example) that compiles a comprehensive list of **IP addresses and mail servers** authorized to send emails on behalf of your company or brand. This compilation encompasses sending sources such as employees, CXOs, third-party vendors, and others. In addition to enumerating sending sources, SPF employs specific syntaxes to convey details and guide recipients’ mail servers on handling unauthorized emails originating from your domain. The [SPF ‘all’ mechanism](/content/spf-record-tester/spf-records-all) is particularly instrumental in this process; **‘\~all’ (soft fail)** instructs a recipient’s server to categorize suspicious messages into the spam folder, while **‘-all’ (hard fail)** mandates the rejection of such messages. This methodology aims to **reduce the risk** of recipients, potential targets of phishing attacks, opening potentially deceitful messages, and [falling prey to cyber exploitation](https://www.channelnewsasia.com/singapore/police-scam-cybercrime-statistics-young-adults-2022-3262141). [![DKIM, short for DomainKeys Identified Mail](https://media.mailhop.org/duocircle/images/2023/11/spf-record-4360.jpg)](https://media.mailhop.org/duocircle/images/2023/11/spf-record-4360.jpg) #### DKIM [DKIM](/resources/what-is-dkim), short for DomainKeys Identified Mail, utilizes **cryptographic methods** to perform authentication checks and ascertain whether the content of a message has been altered during transit. _A **DKIM signature** is affixed to the header of an outgoing email, and this signature is validated at the recipient’s end._ To initiate DKIM, an administrator generates a pair of cryptographically protected public and private keys. The domain owner **securely retains** the [private key](https://www.techtarget.com/searchsecurity/definition/private-key), while the public key is made accessible in the DNS for retrieval by recipients’ servers for verification purposes. Upon receipt of an email from your domain, the recipient’s server retrieves the public key to decrypt the [DKIM signature](https://documentation.mapp.com/1.0/en/dkim-signature-12570662.html) attached to the email header. _If the decrypted signature aligns with the calculated hash of the email content, the **email is deemed authentic** and is confirmed to have remained unaltered during its journey._ #### DMARC DMARC, which stands for Domain-Based Message Authentication, Reporting & Conformance, operates in conjunction with **SPF and DKIM outcomes** to verify the authenticity of an email. Its primary role is to **prevent email spoofing** and phishing by providing guidelines on how recipients’ mail servers should handle [unauthorized messages originating from your domain](https://www.computerweekly.com/news/366546952/Rise-in-fraudsters-spoofing-the-websites-of-leading-UK-banks). _DMARC grants domain owners the authority to specify how mailbox providers should treat unauthorized emails originating from their domain._ The [DMARC record](/resources/create-dmarc-records) allows you to define the following policies: - **None (p=none)**: Also known as the **monitoring policy**, this option involves no action against unauthorized emails. It serves as a monitoring mechanism. - **Quarantine (p=quarantine)**: In this policy, [unauthorized emails](https://www.theguardian.com/news/2023/jun/07/commonwealth-bank-fined-a-record-355m-for-breaching-spam-laws-with-millions-of-emails) are directed to recipients’ spam folders, acting as a **precautionary measure**. - **Reject (p=reject)**: With this policy, unauthorized emails are outrightly returned, providing a more **stringent approach** to preventing their delivery. [![importance of email authentication](https://media.mailhop.org/duocircle/images/2023/11/office-365-tenant-to-tenant-migration-best-practices-1.jpg)](https://media.mailhop.org/duocircle/images/2023/11/office-365-tenant-to-tenant-migration-best-practices-1.jpg) As per DMARC.org, there are over 5 million unique DMARC records as of 2021\. The adoption of these protocols has **increased over the years**; however, not many domain owners have been able to reach the highest level of [email security](/content/email-security-services/what-is-email-security), which is the **p=reject policy**. _A [Campus Technology](https://campustechnology.com/articles/2023/03/09/report-says-most-higher-ed-domains-not-protecting-email-security-fully.aspx)_ _report states an alarming statistic: only 152 out of the US’ 1,930 .edu domains and 3.3% of worldwide .edu domains have implemented a “reject.”_ We hope efforts made by Google and Yahoo **escalate the adoption** and switch to the strictest [DMARC policy](/resources/dmarc-policy). ### 2\. Low Spam Rates Spam messages or unsolicited junk **marketing emails** serve no purpose other than just cluttering recipients’ mailboxes and irritating them. To reduce this, Google and Yahoo are now going to report your emails as spam or block them if they exceed the new **.3%** [spam rate](https://emailmastery.org/email-marketing-glossary/spam-rate/). ## Google and Yahoo’s Requisites for Senders Dispatching 5000+ Emails Per Day For senders sending more than 5000 emails each day, Google and Yahoo have announced to follow the above-mentioned criteria along with something more. More includes a **one-click unsubscribe feature**, and [alignment of the From: header with either the SPF or DKIM domain](https://www.linkedin.com/pulse/what-importance-dkim-spf-alignment-aariya-rathi). [![](https://media.mailhop.org/duocircle/images/2024/02/Email-Sending-Services-Statistics.jpg)](https://media.mailhop.org/duocircle/images/2024/02/Email-Sending-Services-Statistics.jpg) ## DuoCircle is Your Saviour Here So, if you don’t have DMARC in place, then missing the deadline can be detrimental to your domain’s [email deliverability](/a-guide-on-email-deliverability), which can consequently **impact communication** at multiple levels. DuoCircle helps in [DMARC deployment](/dmarc/dmarc-protect-email-recipients-fraud/), management, and reporting which makes the game against [malicious actors](/data-privacy/malicious-actors-use-azure-serial-console-to-gain-unauthorized-access-to-microsoft-vms/) easier and more effective. DuoCircle is awarded as the **G2 Momentum Leader Winter 2023** and **G2 High Performer Winter 2023**. We feel proud of achieving global deployments of 25,000 with an impressive **inbox delivery rate of 99%** and **99.99% uptime**. So, [join us](/) in our mission to make the cyber world a safer place and stay compliant with Google and Yahoo’s requirements. ## Topics DMARCemail securityTrends ![Brad Slavin](https://media.mailhop.org/dmarcreport/images/team/brad-slavin.jpg) Brad Slavin General Manager General Manager at DuoCircle. Product strategy and commercial lead across the email security portfolio. ## Secure your email infrastructure Protect, authenticate, and deliver. Contact our team to find the right solution. [Contact Sales](/contact/) [Explore Products](/products/) ## Related Articles [ Email Services 5m Gmail 550-5.7.26 Error For Emails Failing DMARC Checks Feb 7, 2024 ](/blog/email-services/gmail-550-5-7-26-error-for-emails-failing-dmarc-checks/)[ Email Services 8m 5 Reasons To Test SPF Configuration Before Sending Emails May 14, 2026 ](/blog/5-reasons-to-test-spf-configuration-before-sending-emails/)[ Email Services 7m 7 Critical Factors to Consider Before You Buy SMTP Relay Services Apr 29, 2026 ](/blog/7-critical-factors-before-you-buy-smtp-relay-services/)[ Email Services 3m Real-time email verification and its relevance in 2025! 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