RegEx Documentation
There is currently one system-only filter in place which supports regular expressions (RegEx, RE). This is the
spamtrap database (not to be confused with the spamtrap blacklist), and it is not user-accessible. This filter allows
the Systems Administrator a level of control separate from the users for automation and protection of the mail server.
It should be used cautiously and thoughtfully. The RegEx functions used are the POSIX functions in "regex.h".
- Spamtrap Database: The spamtrap database is a list of spamtrap email addresses, in RegEx form or simply "user@domain.com"
form. When spasm receives a message destined for a spamtrap address, the sending server's IP address is automatically
added to the user-selectable spamtrap blacklist.