[Esd-l] Worms "caught" in mailboxes
brett at lariat.org
Mon Apr 12 10:37:50 PDT 2004
A client of mine is using John's sanitizer and is running into a frequent
problem. Every now and then, he can't retrieve his mail from the server;
the POP server software says that it can't parse the mail file. When he
opens the mail file in a text editor, he discovers that a worm has
arrived in his box. The sanitizer has chopped off the usual RFC822
headers, but has left the MIME attachments behind. Because the file
doesn't begin with a line that starts with "From", the POP server is
declaring the mailbox to be invalid and not allowing retrieval of the
message. Cutting out everything up to the first line beginning with
"From" solves the problem.
Is this a bug in the sanitizer? In Procmail? The system is running
FreeBSD 4.9 and a recent version of Procmail; the sanitizer is version 1.138.
More information about the esd-l