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Re: Filtering with Procmail before it goes to spamassassin.

2004-07-24 00:57:27

On Saturday, July 24, 2004, at 03:30  AM, Nancy McGough wrote:

On 24 Jul 2004 Alan Clifford (lists(_at_)clifford(_dot_)ac) wrote:

DAR> The spammers don't use a valid user name from my
DAR> domain, so I can't simply add them to the SA blacklist.

It is not really a task for procmail but it may be all you have.

Alan is right that this is not a task for procmail and this should be done at the MTA. If you're not the sys admin of your system, ask your sys admin to eliminate the catchall for your domain so that all those non-valid-user-name emails will be rejected at the SMTP level (during the SMTP conversation). I monitor hosting providers and track a lot of what I've learned on my IMAP Service Providers page, which is here:

 <http://www.ii.com/internet/messaging/imap/isps/>

Lately almost every single provider has advised their users to quit using catchalls and they all have reasonably easy ways to do this in their Control Panels.

I hope this helps,
Nancy
Infinite Ink
www.ii.com


Thanks for the suggestion. After reading the posts, I see now that re-creating this function in procmail isn't the way to go. I'm going to talk with my sys admin about setting up several mailboxes for me@ and webmaster(_at_)(_dot_) Hopefully the bounced message that it generates will alert the valid sender they didn't type in the correct user name. Doing this at the MTA would also solve the concern about legit e-mail that is BCC'ed to me@ from being mistake as being sent to an incorrect user, is that correct?

David Roth
rothmail at comcast.net


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