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...
Testing qmail, SMTP and auth
At this time /command/svcscanboot should have started qmail: > ps axfww 20017 ? Ss 0:00 /bin/sh /command/svscanboot 20019 ? S 0:00 \_ svscan /service 20021 ? S 0:00 | \_ supervise qmail-submission 20032 ? S 0:00 | | \_ /usr/local/bin/tcpserver -v -R -l...
qmailadmin password-strenght patch
May 1 2020 update: This patch has been replaced by the qmailadmin-cracklib patch, that is much more robust. Look here for more info download A big lack of qmail account managers, expecially qmailadmin, is that they do not provide any password complexity check....
Configuring Sender Policy Framework (SPF) on qmail
The Sender Policy Framework (SPF) is an open standard specifying a technical method to prevent sender address forgery. More precisely, the current version of SPF — called SPFv1 or SPF Classic — protects the envelope sender address, which is used for...
