Configuring DKIM for qmail
Index Changelog Acknowlegments Creating the domainkey signature for your outgoing emails Configuring qmail-remote for signing and qmail-smtpd for verification rc script qmail-smtpd/run script Testing qmail-dkim Verification test Testing the DNS record Configuring qmail-smtpd for signing outgoing messages qmail-smtpd run script Testing the signature at qmail-smtpd level Making qmail-dkim and simscan live together in peace Choosing...
Playing with qmail-spp
qmail-spp provides plug-in support for qmail-smtpd. It allows you to write external programs and use them to check SMTP command argument validity. The plug-in can trigger several actions, like denying a command with an error message, logging data, adding a header...
Adding clamav-unofficial-sigs
More info here Version: 7.2.5 The clamav-unofficial-sigs script provides a simple way to download, test, and update third-party signature databases provided by Sanesecurity, FOXHOLE, OITC, Scamnailer, BOFHLAND, CRDF, Porcupine, Securiteinfo, MalwarePatrol, Yara-Rules Project, urlhaus, etc. The script will also generate and install cron,...
Limiting the number of emails sent by a given auth-user/domain/IP
If you want to avoid the risk of compromising your server because of accounts who are sending messages indiscriminately to the world, due to the fact that their password have been violated in some way, then you can consider Luca Franceschini's...
