spamdyke 2.6.3

spamdyke is a drop-in filter for qmail to provide connection-time blacklisting, graylisting, DNS RBL checking, improved logging, and more spamdyke project is a standalone program that does not use qmail source code or require patching/recompiling qmail. For anyone who runs a mail server, spam is a problem. Its a huge problem and its only getting bigger. Unfortunately, qmail doesnt have many facilities for dealing with spam. qmail also doesnt do good logging. The qmail logs are probably useful to qmail developers but not to system administrators. Consider: - Qmail doesnt log with a human-readable time format. - Qmail logs dont track usable information (like senders and recipients). - Qmail doesnt log to a single log file, making it very difficult to track an email from connection to delivery. - Qmail logs roll over after a set size is reached (could be a few hours, could be a few minutes). All of these things makes qmail very difficult to troubleshoot or monitor. spamdyke solves this. It monitors incoming traffic, acting as a middleman between qmail and the remote server. It catches the sender and recipient addresses as they go by and logs them to syslog. If it sees something it doesnt like (e.g. a blacklisted sender), it cuts the connection, closes qmail and fakes the rest of the SMTP transaction with the remote server. qmail thinks the remote server disconnected normally. The remote server thinks qmail is rejecting the message. Its the best of both worlds. Some history: DJBs ucspi-tools package includes a handy little program called rblsmtpd for checking incoming SMTP connections against a DNSRBL. Initially, this seemed like a great thing (and it was) but it didnt go far enough. Lots of spam still came through. So after extending rblsmtpd to do more and more and more things, a limit was finally reached where it wouldnt go any further. Thus, spamdyke was born.. Free software written by Sam Clippinger. Reusable libraries, utilities and games.

Requirements:	No special requirements
Platforms:	Linux
Keyword:	Connection,  Dns Entry,  Dns Rbl,  Ip Address,  Qmail,  Rbl,  Reject,  Remote,  Remote Server,  Remote Servers,  Reverse Dns,  Reverse Dns Entry,  Server,  Smtp,  Spamdyke
Users rating:	0/10