Bypassing Spam Checks
March 16th, 2009Your sendmail is configured to block incoming junk mail, and you have been asked to allow junk mail through when it is addressed to specific recipients.
Identifying Local Problem Users
February 25th, 2009Spammers hide their true identities. You want to provide as much information as possible to track down spammers that use your system.
Using Regular Expressions in sendmail
February 25th, 2009Run the sendmail -d0.1 command. The “Compiled with:” line output by the command should contain MAP_REGEX. If it does not, recompile sendmail.
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Filtering Outbound Mail with procmail
February 13th, 2009You want to configure sendmail to filter mail addressed to specific domains using procmail as the mail filtering software
Filtering Local Mail with procmail
February 13th, 2009You want to filter mail with procmail before making deliveries to local users