There's no limit, *but* adding 6000 domains to it could slow things down quite a bit as it would have to check each incoming mail against each one.
With the [SPAM] emails, it sounds like your mail server has SpamAssassin installed. One way to filter out these emails is at the mail server level (use something like procmail, etc). The other way would require a custom change to incoming.pl - you would read the headers, and check for the occurance of the X-Spam-Status: Yes header.
Adrian
With the [SPAM] emails, it sounds like your mail server has SpamAssassin installed. One way to filter out these emails is at the mail server level (use something like procmail, etc). The other way would require a custom change to incoming.pl - you would read the headers, and check for the occurance of the X-Spam-Status: Yes header.
Adrian
