qmail

smtp-auth + qmail-tls + forcetls patch for qmail

Download (MD5) Version: 2022.02.16 Changelog 2022.02.16-fixed a TLS Renegotiation DoS vulnerability. Disabled all renegotiation in TLSv1.2 and earlier (only openssl-1.1). (diff here) 2020.05.08- qmail-tls patch updated to v. 20200107* working client cert authentication with TLSv1.3 2019.06.28- qmail-tls patch updated to v. 20190517* bug: qmail-smtpd ssl_free before...

Greylisting for qmail

Greylisting is a method of defending e-mail users against spam. A mail transfer agent (MTA) using greylisting will "temporarily reject" any email from a sender it does not recognize. If the mail is legitimate, the originating server will try again after...

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 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, logrotate,...