Just upgraded to a new Solr, so I did a full re-index. Saw some of these friendly messages: doveadm(csmith at amfes.com): Error: zlib.read(/var/mail/amfes.com/csmith/mdbox/storage/m.20): gz trailer has wrong CRC value at 28579617 doveadm(csmith at amfes.com): Error: read(zlib(/var/mail/amfes.com/csmith/mdbox/storage/m.20)) failed: Invalid argument doveadm(csmith at amfes.com): Error: read(zlib(/var/mail/amfes.com/csmith/mdbox/storage/m.20)) failed: Invalid argument (uid=5251) -- Daniel