Hi there

I would like to create very effective filters in MF, to keep the the parsetime down.
I would like to know what IF sentenses to use first, to end the filter as quickly as possible.

Etc a filter that calls
IF header contains
IF user in list
IF user is LOCAL

So is it faster to the header and check for content (is the file already open, or does mailfilter have to open a new instance of the mail to check it) than it is to open an external list for username.
In Check if user is LOCAL does mailfilter go to the mailserver to check, or how does it work.

Any way, what are the parsetimes for these different filters? I know that if I have 10.000 users on my mailserver, and only 2 are in the list I check, then it would be smarter to check the userlist before anything else, as the odds are better to stop the filter right then...