Screwy filter behavior

[naeb]

Not sure if this is a bug or I'm just doing something wrong:

Since Zimbra 4.x doesn't support multiple accounts per session, I worked around this by having other accounts such as admin forward their mail to my primary mailbox. In order to separate mail from different accounts, I'm using filters such that any mail with admin@domain.tld in the To: field gets put into its own folder.

This systems works pretty well for normal mail, the trouble occurs with spam. These filters are also applied to any mail in the Junk folder; in effect, hardly any spam remains in the Junk folder. The easy solution seems to be to add a *SPAM* prefix to the subject line of all suspected spam and add another filter to the bottom of the list that moves anything with *SPAM* in the subject line back into the Junk folder. Unfortunately, instead of moving the message to the Junk folder, it creates a copy in the Junk folder and leaves a copy in the admin folder.

Any ideas what's going wrong?

[ArcaneMagus]

I appear to be having this problem as well where all mail that fits a custom filter on the admin account appears to not be being filtered for spam.

Does anybody know how to fix this or should I just abandon the custom filters?

[shaver]

Yeah, you're hitting a known bug, which skips spam processing for anything that hits a filter rule: Bug 12701 - Define a default filter rule for spam that users can apply before custom filters

[naeb]

Thanks for pointing that out shaver; its got my vote.