Hi, I'm was playing with strict_threads, sort_re and reply_regexp but still don't know how to make threading for messages with subject like: Case 123456789 - part of subject which can chane Re: Case 123456789 - and here is changed Case 123456789 - and here thread is continued I want to make above subjects in one thread but I faild. Can anyone can give me a tip how to do this? Thanks. -- best regards q#