This is where we come in.
Table of Contents
What is email authentication?
Email servers use different processes and standards to confirm the authenticity of an email.
Abounceback emailusually includes an error code or a statement indicating why the email could not be delivered.
The Mail is unauthenticated error is delivered in such an email.
Knowing that will help you mitigate the bounceback error Mail is unauthenticated.
What is DMARC Policy?
The purpose of this policy is to reduce spoofing (since it cant be eliminated).
The DMARC policy is stored as a TXT record on the DNS server of the domain.
The tags and values defined in the record tell the mail server how to handle unauthenticated emails.
A DMARC record looks like this:
The value after the p= tag defines how unauthenticated emails are handled.
Googles & Yahoos requirements for email delivery
InGmails announcement, they have focused on bulk email senders.
However, the new policies also affect regular users who do not send emails in bulk.
Before proceeding further, it is important to understand which email accounts are considered bulk email senders.
These are usually email accounts used for marketing or financial receipt purposes.
But theres a catch.
This is the accumulated emails sent from different email addresses but from the same domain.
However, this has now been made mandatory.
Domains sending bulk emails without a DMARC record would end up getting blacklisted.
If the spam percentage is above 0.3 percent, then the domain may be blacklisted by Google.
This concludes the new rules applied for bulk email Senders.
Senders must have SPF and DKIM enabled.
Learn how to configureSPFandDKIM.
Sending domains and IP addresses must have valid PTR records.
Your domains spam rate must be below 0.3%.
Your email format must follow IMF specifications as mentioned underRFC 5322.
ImpersonatingFrom:headers is not allowed and can reduce your mail delivery rates.
Forwarded emails must be signed by ARC.
However, on February 1st, 2024, Google changed this to p=quarantine.
This means that emails that do not authenticate successfully will be sent to the spam folder.
This specifically affects the domains that are using theFrom:headers like @gmail.com.
Initially, this would only be implemented for a small percentage of the emails that are not authenticated.
This means that the value for the p tag in the DMARC policy will be changed to reject.
Note that this is a revised deadline defined by Google.
There is no room for interpretation or errors.
For one, your email deliverability will be significantly impacted.
Emails will begin ending up in the spam folder, or not being delivered at all.
Only certain types of business require that kind of emailing power.
However, the rest of the policies will still apply.
To begin, you must first check your mail server and DNS configuration.
Moreover, it also informs you if your domain is currently blacklisted across any IP history maintaining services.
If you find an issue with a DNS record or a policy, rectify it immediately.
If you are a non-bulk sender, then these should be sufficient.
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source: www.itechtics.com
