Hello Monks, My mailsystem (Postfix) is currently set to deliver all spammy/infected emails to a global junk folder. As it stands, emails are gzip'ed and then dropped in this folder after they fail scanning. There doesn't seem to be much for options to deliver to a user-folder for SPAM, nor is there anything in the file naming which indicates the ultimate recipient (which I suppose makes sense, as there could be multiple recipients). Now, I've made a script which reads in the userbase to a hash, and subs in values from /etc/aliases as needed. It reads the GZIP'ed email (using Compress::Zlib) and identifies the recipient from the X-Envelope-To header and compares against valid users/aliases (probably won't work with multi-recipient mail, but that's a task I'll work on after. It does work for multi-user aliases aka lists) So... what I'd like to do is either:

• Copy the email to the recipient(s) "~/Maildir/.Junk/new " folder
• Move SPAM to a spool folder, and Symlink the email for all recipients from the main folder

Now, since the script will be running under cron and probably at times have a lot of junkmail to deal with, I may limit it to X messages per run. For deleting the SPAM email, I'm thinking that Symlinks are the way to go. As it would be:

Check the spool folder. If message is older than $EXPIRY (say, about 1 week), nuke it, or if message has no more symlinks (meaning that all linked user's have deleted it). The alternative, of course, is to scan the ~/Maildir/.Junk/cur and ~/Maildir/.Junk/new Either way has problems. Symlinks:

• I'm not sure yet how it will behave if a user moves the email to another folder (will it copy/move the symlink, or create a new file in the other folder).
• If the symlink is simply move as a symlink, deleting dated symlinks won't work as the user may have in fact relocated a message to inbox (say it was mislabelled as SPAM).
• Also, symlinks won't work between filesystems, but this should be OK for the situation here

The issue with making physical copies of the file is much the same:

• Delivering copies to user junk Maildirs will take up much more space
• Individual user junkmail folder would need to be scanned for date/time of messages (for deletion), which is more of a pain

So, does anyone have a better way of doing this, or some pointers on how I'm doing it now?

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