On 29.10.2012, at 23.20, Christoph Anton Mitterer wrote: > On Mon, 2012-10-29 at 23:13 +0200, Timo Sirainen wrote: >>> Great... and I expect that this ("no headers from the maildir files >> are >>> interpreted") applies also, when one "imports" mails the first time. >>> >>> With import I don't mean via IMAP, but plainly moving e.g. a maildir >> ++ >>> tree under dovecots mail location. >> >> Yeah. > So that means: From a "security" point of view, when using maildir (!) > there's no need to remove such headers, cause dovcote ignores them (on > maildir) always. Right?!
Right. The only special case is X-UIDL: header, which is used for POP3 UIDLs but only if pop3_reuse_xuidl=yes (which isn't really recommended nowadays as there are other ways to do it). > I just wondered because when I looked through my mail archive (currently > as mentioned, under Evolution)... many emails already had X-UID and > X-IMAP* headers.... (set by the remote side, not by Evolution) ... and > in no case these should be able to mess around in my dovecot :) If you migrated from mbox format it could have brought those headers to maildir. They're anyway not used for anything by Dovecot.