PostMastery’s new Email Audit Tool | Port25 Solutions, Inc.
Fred Tabsharani

By port25admin

PostMastery’s new Email Audit Tool

P25 As a legitimate email sender you have to follow an increased number of guidelines to stay compliant.  This helps receivers and recipients separate the good mail from unwanted mail.   If your emails are not compliant there is little difference between you and the average spammer, and you run into the risk of being filtered.  The following post introduces a comprehensive Email Audit tool to help make your emails more compliant which will result in better inbox delivery rates.  Our friends at recently unveiled this tool and I’m formally introducing it here on the Industry Pulse.  It’s called the EmailAudit tool.

Becoming compliant
If you know about SMTP, FCrDNS, SPF, DKIM, and DMARC you can check your email manually for compliance.  There are also a number of tools to test if your SPF or DKIM is valid. These tools give you a simple “pass” or “fail”, however, you still need to find the root cause of the “fail” yourself. But what if you are not an email guru and don’t read RFCs (internet standards) top to bottom?  At Postmastery we’ve created our own set of tools which we use internally to test the email systems of our clients.  And we believe, that the email industry will benefit from the widespread use of email authentication and adoption of sender guidelines.  Therefore we started working on a comprehensive free public service that helps the average sender become fully compliant.
EmailAudit, was recently released in public beta and so far helped many senders identify compliance issues. The service contains 45 tests which are divided into the following groups:

  • Server Configuration
  • SMTP Envelope
  • SPF Authentication
  • Header Fields
  • DKIM Authentication
  • DMARC Compliance

Test results are presented with detailed explanation and severity. Green means “pass”, yellow means “nice to have”, and red means “must fix”.

EmailAudit goes much further than other tools. For example the DKIM tests check the algorithm, DNS record, key length, validation, and alignment. If this is greek to you don’t worry, the audit report explains all this. It also checks for common provider guidelines, such as a working From header address, and precense of a List-Unsubscribe header.

How does it work?
To use EmailAudit, just go to For each audit you need to fill in your name and email address. This is used to notify you when the test email is received and when the audit report is ready. You will see a unique email address where the test email should be sent to.  Send the test email with the same system as you would normally do.  After a few minutes your free report will be ready.

As email experts it can be difficult to put ourselves in the minds of the average user.  So, PostMastery, would like to have your feedback on the service as it continues to ramp up.  Perhaps the reports can be made more understandable or more tests can be added.   Use the Contact Us link on to send an email with any questions.


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