On Wed, 2014-05-07 at 15:36 +0200, Ralf Hildebrandt wrote:
From my log:
May 06 16:26:49 imap(loginname): Error: zlib.read(/var/mail/loginname/mdbox/storage/m.94): gz trailer has wrong CRC value at 2412347 May 06 16:26:49 imap(loginname): Error: read() failed: Invalid argument (FETCH for mailbox INBOX UID 3434)
How do I fix that?
With some difficulties. I'm not sure how Dovecot could even handle corrupted compression in any good way. Currently it treats it the same way as temporary disk I/O error, which I guess isn't that great if there really is corruption that doesn't fix itself.
Anyway, for now you'd basically need to get rid of the broken mail in some way. First find out which mail it is, then try to make a copy of it that hopefully is mostly correct (e.g. doveadm fetch > file), upload the working copy back (dovecot-lda) and delete the original broken one.