On 03/29/16 19:41, Timo Sirainen wrote:
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.
I don't have mail_log enabled (currently, but will be) and indexes
aren't disabled.
Here's the actual config:
# 2.2.22 (fe789d2): /usr/local/etc/dovecot/dovecot.conf
# Pigeonhole version 0.4.13 (7b14904)
# OS: FreeBSD 10.3-PRERELEASE amd64
auth_mechanisms = plain login
disable_plaintext_auth = no
imapc_features = rfc822.size fetch-headers
imapc_host = 127.0.0.1
imapc_port = 1430
lmtp_proxy = yes
mail_gid = imapproxy
mail_home = /usr/home/imapproxy/%2.256Nu/%u
mail_location = imapc:~/imapc
mail_prefetch_count = 100
mail_uid = imapproxy
managesieve_notify_capability = mailto
managesieve_sieve_capability = fileinto reject envelope
encoded-character vacation subaddress comparator-i;ascii-numeric
relational regex imap4flags copy include variables body enotify
environment mailbox date index ihave duplicate mime foreverypart extracttext
namespace inbox {
inbox = yes
location =
mailbox Drafts {
special_use = \Drafts
}
mailbox Junk {
special_use = \Junk
}
mailbox Sent {
special_use = \Sent
}
mailbox "Sent Messages" {
special_use = \Sent
}
mailbox Trash {
special_use = \Trash
}
prefix =
}
passdb {
args = /usr/local/etc/dovecot/dovecot-dict-auth.conf.ext
driver = dict
}
postmaster_address = postmaster
service lmtp {
inet_listener lmtp {
address = 127.0.0.1
port = 24
}
unix_listener /var/spool/postfix/private/dovecot-lmtp {
group = postfix
mode = 0600
user = postfix
}
}
ssl = no
userdb {
driver = prefetch
}
userdb {
args = /usr/local/etc/dovecot/dovecot-dict-auth.conf.ext
driver = dict
}
protocol lmtp {
mail_plugins = " sieve"
}
The user home contains a dovecot.index.cache and a .log file.
During the LMTP delivery (which turns into an IMAP APPEND, maybe this is
where the bug lies? It's not too typical to do this I guess), they
aren't changed.
