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gate2vn
01-21-2018, 09:21 PM
For one account (among 300+ other accounts on the same server), I have this error when there is an email sent to that account.


Jan 22 12:11:13 lmtp(18243): Error: lmtp-server: conn unix:pid=19550,uid=8 [1]: Connection lost during data transfer: read(unix:pid=19550,uid=8 [1]) failed: <no error>


Tried to search on Google, but still cannot see the reason. Any idea about the reason and how to fix please?

Thanks.

gate2vn
01-21-2018, 09:29 PM
It looks like a bug in Dovecot 2.3. I downgraded to 2.2.33, and the mail was sent in no problem.

JohnyByk
04-23-2018, 05:55 AM
Dovecot 2.3.1 still makes some errors
/var/log/dovecot-lmtp-errors.log

Apr 23 14:51:13 lmtp(8178): Panic: file lib-event.c: line 182 (event_pop_global): assertion failed: (event != NULL)
Apr 23 14:51:13 lmtp(8178): Error: Raw backtrace: /usr/lib/dovecot/libdovecot.so.0(+0xc9c11) [0x7fc53c4b8c11] -> /usr/lib/dovecot/libdovecot.so.0(+0xc9c69) [0x7fc53c4b8c69] -> /usr/lib/dovecot/libdovecot.so.0(i_fatal+0) [0x7fc53c4283b1] -> /usr/lib/dovecot/libdovecot.so.0(event_pop_global+0xa8) [0x7fc53c4d4d98] -> /usr/lib/dovecot/libdovecot-storage.so.0(+0x4fdb8) [0x7fc53c7b6db8] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_context_deactivate+0x55) [0x7fc53c4d0625] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_call_io+0x89) [0x7fc53c4d0a89] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_handler_run_internal+0x109) [0x7fc53c4d2359] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_handler_run+0x52) [0x7fc53c4d0b72] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_run+0x38) [0x7fc53c4d0d88] -> /usr/lib/dovecot/libdovecot.so.0(master_service_run+0x13) [0x7fc53c44bca3] -> dovecot/lmtp [local READY](main+0x240) [0x5618cfcebda0] -> /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf1) [0x7fc53c0702e1] -> dovecot/lmtp [local READY](_start+0x2a) [0x5618cfcebeea]

Maybe someone know how to solve this problem.
Regards

shanti
05-10-2018, 09:13 AM
Dovecot 2.3.1 still makes some errors
/var/log/dovecot-lmtp-errors.log
Maybe someone know how to solve this problem.
Regards

i am interrested as well , primary: what is the impact of this error ?

tim874536
06-12-2018, 06:21 PM
The impact is that message over 30MB cannot be delivered by Dovecot-lmtp to the local user mail box.
check https://www.dovecot.org/list/dovecot/2018-April/111501.html and the message chains.
https://github.com/stephanbosch/dovecot-core/commits/lmtp-fix-msg-size-limit

By the way, may I know how to downgrade the dovecot to a lower level?

gate2vn
06-13-2018, 11:29 AM
By the way, may I know how to downgrade the dovecot to a lower level?

You can follow the guide here https://help.directadmin.com/item.php?id=565

tim874536
06-13-2018, 11:45 PM
You can follow the guide here https://help.directadmin.com/item.php?id=565

Thank you, I got this link too.
However, I don't know the last version other then 2.3.0 & 2.3.1.

ditto
06-14-2018, 12:06 AM
Dovecot 2.2.36 is the latest version in 2.2.x, and it is available in Custombuild. We run this version without problems, but remember to NOT upgrade dovecot.conf because dovecot.conf 0.3 is not compatible with Dovecot 2.2.x

Luckily this is a temporary fix, because the fix for attachment limits shuld be available in the next Dovecot 2.3.2 version:


Release schedule tells me it will be part of 2.3.2, which should roll out some time mid June.

From: https://www.dovecot.org/pipermail/dovecot/2018-May/111896.html

tim874536
06-15-2018, 02:23 AM
Dovecot 2.2.36 is the latest version in 2.2.x, and it is available in Custombuild. We run this version without problems, but remember to NOT upgrade dovecot.conf because dovecot.conf 0.3 is not compatible with Dovecot 2.2.x

Luckily this is a temporary fix, because the fix for attachment limits shuld be available in the next Dovecot 2.3.2 version:



From: https://www.dovecot.org/pipermail/dovecot/2018-May/111896.html

Hi ditto, Thank you for your sharing.