What external tools are people using?
Question asked by mgreider - 3/12/2024 at 9:04 AM
Hello - I would like to refresh my knowledge of external email testing tools. What tools, sites and utilities are other people using? Here are the ones I have:

mxtoolbox.com - general testing
zerobounce.net - used to be unlocktheinbox, but has a good tool for checking your emails for compliance
checktls.com - pretty obvious
dkimvalidator.com - simple dkim, spf validator
emailsecuritygrader.com - more generalized testing of the SSL of your mail server
mailhardener.com - logging and reporting spf, fkim, dmarc, mta-sts and tls feedback loops

What other tools and utilities are out there that you've found helpful?

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SmP Replied
Decent actual DKIM testing tool https://www.appmaildev.com/en/dkim
Matthew Titley Replied
That last one is a good one, too. Just tested it. Two thumbs up!

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