The idea of spam throttling came about after would-be spammers were easily circumventing (classic) tarpitting. A reasonable recipient limit in tarpitting must not adversely affect acceptable mail usage, so spam clients typically create multiple SMTP conne
qSheff is a wrapper for the qmail queue that scans email for viruses and spam. Infected messages are rejected before they reach the queue, so the server doesn't perform any job for them. After checking the message, it will wake the qmail queue.
Simscan is a simple program that enables qmail-smtpd to reject viruses, spam, and block attachments during the SMTP conversation so the email never makes it into your computers. It is completely open source and uses other open source components. Very effi
SPAMCONTROL is an extension qmail. Though mainly used to filter and control unsolicited commercial E-Mails (UCE/SPAM), since release 2 it includes substantial EMSTP protocol enhancements for qmail.
This is an SPF implementation for qmail. SPF is something like a DNS based "reverse MX" system to designate permitted senders for mails depending on the domain name. The goal is to disallow sender address forgery.
Although (by now) I don't use Spamassassin myself, I have it done once and it worked for me. People have asked me about it, so I put the pieces here together.
Qmail-Scanner is an add-on that enables a Qmail email server to scan gatewayed email for certain characteristics (i.e. a content scanner). It is typically used for its anti-virus and anti-spam protection functions, in which case it is used in conjunction
there's a fair amount of confusion on the subject of relaying mail and what the rcpthosts file has to do with it, and how tcpserver's tcprules can affect it. So I've written the following, exceedingly wordy explanation of relaying and how to do it selecti
I have set up a particular email discussion list to deal with the following issues: * SPAMCONTROL: release announcements, additional usage information, forthcoming developments * QMVC: release announcements, usage, additional templates * NEWANALYSE: relea
In English, the filter would be written: “Any mail that does not contain ‘X-Forwarded-For: user@gmail.com user@domain.com’ in the mail header should be forwarded to user@gmail.com”.