Danke Marc, clearer now. And sure, I'll take answers from anyone. About this: >What do you think files named "header", "index", "cache", "expunge" and >"squat" in this context contain? ;) Ich denke this are the cyrus header index and cache files generally stored on each mailbox folder. I can imagine what they do but not sure and I wouldnt mind about a little explanation =) About expunge and squat, keine Idee about what they are for and where they reside expunge: index file with messages marked for deletion ? Thanks again D. ---- Cyrus Home Page: http://cyrusimap.web.cmu.edu/ Cyrus Wiki/FAQ: http://cyrusimap.web.cmu.edu/twiki List Archives/Info: http://asg.web.cmu.edu/cyrus/mailing-list.html