Created attachment 850321 [details] .mailfilter file Attached .mailfilter file works with 2.6.0-2.fc19, but does not with 2.7.1-1.fc19. For example, message with "From:" header "System Anti-Virus Administrator" <admin> is matched with 2.6.0, but not with 2.7.1. I used command maildrop -V 4 -d nerijus <message 2> maildrop2xx.txt.
Created attachment 850322 [details] maildrop 2.6.0 output
Created attachment 850323 [details] maildrop 2.7.1 output
This might be a locale issue. I am not sure which locales maildrop can handle in its filter files. A quick look suggests just ASCII. There are some non-ascii strings in your patterns, and this would be a good place to start looking for a cause.
> There are some non-ascii strings in your patterns Where exactly? I don't see non ascii content in .mailfilter file.
I looked at both of your attached logs and saw non-UTF (and hence non-ASCII) characters show in the patterns in the output.
The problem is with the quotes - more info in the mailing list archive: http://courier-mail-server.10983.n7.nabble.com/mailfilter-file-stopped-working-with-2-7-1-td21212.html Although the backwards compatibility ir broken here, but there's nothing we can do.