> On 19 Feb 2016, at 17:12, Nagy, Attila <b...@fsn.hu> wrote: > > Hi, > > This is a capture from an imapc client session (which is triggered by a > message, received via LMTP): > * OK [CAPABILITY IMAP4rev1 NAMESPACE] Ready > 2 LOGIN "uid" "pass" > 2 OK LOGIN succeeded > 1 LIST "" "" > * LIST (\Noselect) "/" "" > 1 OK LIST completed > 3 APPEND "INBOX" {568} > + Ready for 568 octets of data > [...] > 3 OK APPEND complete > 4 EXAMINE "INBOX" > * FLAGS (\Answered \Flagged \Deleted \Seen \Draft) > * OK [PERMANENTFLAGS (\Answered \Flagged \Deleted \Seen \Draft \*)] Flags > permitted. > * 4 EXISTS > * 0 RECENT > * OK [UIDVALIDITY 1455885804] > * OK [UIDNEXT 5] > 4 OK [READ-ONLY] EXAMINE successful > 5 UID FETCH 0 (RFC822.SIZE BODY.PEEK[HEADER.FIELDS (Message-ID)]) > 5 BAD Illegal syntax: Bad message number 0 > > Dovecot 2.2.21 > > I don't see any problems with the conversation otherwise. Is it safe to > assume this is a bug in imapc?
doveconf -n would be helpful. I guess you have mail_log plugin enabled? And imapc isn't used with any index directory? So Dovecot attempts to log Message-ID and size after saving a mail, but those aren't in cache (because indexes are disabled) and the transaction isn't committed yet either so the mail has no UID. So the only fix for now that I can do is to just not send the FETCH command and instead fail it immediately: https://github.com/dovecot/core/commit/969f57f722570982a5febbaab2462b692aa68733 Any further fixing would become difficult.