Steve Atkins · @steve
68 followers · 57 posts · Server deliverabilit.ie

I host my own on a cheap (<$10/mo) VPS.

Technically, I deployed postfix with the default configuration, published records and sign with .

I am an email expert, but the only experty things I did were to not host on a provider like OVH that seems to specialize in hosting spammers, not to allow my users to send spam, nor to forward spam.

That's all. And my is just fine, with no particular effort involved.

#email #SPF #DKIM #deliverability

Last updated 2 years ago

· @mtjm
6 followers · 40 posts · Server m.mtjm.eu

When I set up years ago, I was happy that it blocked so much . Then I moved to requiring matching reverse DNS records (which I still have mixed feelings about) and that blocked all that spam and more.

After several days of having and verifiers, I observed only one piece of spam being blocked by these (with SPF also failing), while all professional spammers have valid DKIM signatures.

Maybe I should write more so I experience my messages being blocked or not.

#SPF #spam #DKIM #DMARC #email

Last updated 2 years ago

Joe Shenouda · @shenouda
79 followers · 57 posts · Server cybersecurity.masto.host

You've done the right thing by your organization and made sure that and (sender policy framework) records are set in an effort to reduce email spoofing, but all that good work could be undone if the SPF is too permissive in the stated IP range.

Such a situation was pointed out by Can I Phish CEO Sebastian Salla who scanned 1.8 million Australian domain records in search of snafus.

To read the complete article see:

zdnet.com/article/check-your-s

#DMARC #SPF #email #Security

Last updated 3 years ago