Hi!
After installing dovecot 2.3.20 from...
https://repo.dovecot.org/ce-2.3-latest/debian/bullseye/pool/main/
...in Debian 11...
# dpkg -s dovecot-core | grep Version
Version: 2:2.3.20-3+debian11
...problem still exists. Logs (with exim's debug enabled):
2023-08-10 19:26:39 myhost exim[...]: 54 SMTP>> 550-aa bbbbbbbbbb
ccccccc dd eeeeeeeeeeee ffffffffffff gggggggggg hh iiiiii jj
2023-08-10 19:26:39 myhost exim[...]: 54 SMTP>> 550-kk llll
mmmmmmmmmm nnn o ppppppppppppppp rrrrrr ssssss t uuuu w xxxxxxx
2023-08-10 19:26:39 myhost exim[...]: 54 SMTP>> 550-yyyyyy zzzzzzzz
aa bbbbbbbbbbb cccccccc dd eeeeee fff gggggg hhhhhhh
2023-08-10 19:26:39 myhost exim[...]: 54 SMTP>> 550-iiiiiiii jj
kkkkkk ll mm nnnn ooooo ppppppp qqqq r ssss tttttt
2023-08-10 19:26:39 myhost exim[...]: 54 SMTP>> 550 uuuuuuuuuuuuu www
xxx yyyyyyy zzzzz aaaaa bbbbbbbbb ccc ddddddd
2023-08-10 19:26:39 myhost exim[...]: 54 LOG: MAIN REJECT
2023-08-10 19:26:39 myhost exim[...]: 54 [...] rejected RCPT
<[...]>: aa bbbbbbbbbb ccccccc dd eeeeeeeeeeee ffffffffffff gggggggggg
hh iiiiii jj kk llll mmmmmmmmmm nnn o ppppppppppppppp rrrrrr ssssss t
uuuu w xxxxxxx yyyyyy zzzzzzzz aa bbbbbbbbbbb cccccccc dd eeeeee fff
gggggg hhhhhhh iiiiiiii jj kkkkkk ll mm nnnn ooooo ppppppp qqqq r
ssss tttttt uuuuuuuuuuuuu www xxx yyyyyyy zzzzz aaaaa bbbbbbbbb ccc ddddddd
2023-08-10 19:26:39 myhost dovecot:
submission(test)<300><cg4X5pQCaLTAqHoB>: Panic: file
smtp-server-reply.c: line 625 (smtp_server_reply_send_real): assertion
failed: (text[0] == '-')
2023-08-10 19:26:39 myhost dovecot:
submission(test)<300><cg4X5pQCaLTAqHoB>: Error: Raw backtrace:
/usr/lib/dovecot/libdovecot.so.0(backtrace_append+0x42) [0x7fd0e7a45872]
-> /usr/lib/dovecot/libdovecot.so.0(backtrace_get+0x1e) [0x7fd0e7a4598e]
-> /usr/lib/dovecot/libdovecot.so.0(+0x1025eb) [0x7fd0e7a525eb] ->
/usr/lib/dovecot/libdovecot.so.0(+0x102681) [0x7fd0e7a52681] ->
/usr/lib/dovecot/libdovecot.so.0(+0x55589) [0x7fd0e79a5589] ->
/usr/lib/dovecot/libdovecot.so.0(+0x48b8d) [0x7fd0e7998b8d] ->
/usr/lib/dovecot/libdovecot.so.0(smtp_server_command_send_replies+0x95)
[0x7fd0e79ca055] -> /usr/lib/dovecot/libdovecot.so.0(+0x7e0e2)
[0x7fd0e79ce0e2] -> /usr/lib/dovecot/libdovecot.so.0(+0x129621)
[0x7fd0e7a79621] ->
/usr/lib/dovecot/libdovecot.so.0(io_loop_call_io+0x69) [0x7fd0e7a68819]
-> /usr/lib/dovecot/libdovecot.so.0(io_loop_handler_run_internal+0x132)
[0x7fd0e7a69f02] ->
/usr/lib/dovecot/libdovecot.so.0(io_loop_handler_run+0x50)
[0x7fd0e7a688c0] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_run+0x40)
[0x7fd0e7a68a80] ->
/usr/lib/dovecot/libdovecot.so.0(master_service_run+0x13)
[0x7fd0e79db3c3] -> dovecot/submission(main+0x4ea) [0x558050a6118a] ->
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xea) [0x7fd0e779dd0a]
-> dovecot/submission(_start+0x2a) [0x558050a6121a]
Dovecot does not panic when exim's error message is changed to short,
single line string...
2023-08-10 19:41:53 myhost exim[...] 53 SMTP>> 550 aa bbbbbbbbbb
ccccccc dd eeeeeeeeeeee ffffffffffff gggggggggg hh iiiiii jj
2023-08-10 19:41:53 myhost exim[...] 53 LOG: MAIN REJECT
...so problem is caused by dovecot's multiline SMTP reponse parsing
stuff probably; maybe assertion in smtp-server-reply.c:625
https://github.com/dovecot/core/blob/main/src/lib-smtp/smtp-server-reply.c#L625
should not be called because exim's response last line starts with " "
not "-"?
Pawel
W dniu 10.08.2023 o 18:53, Aki Tuomi pisze:
Hi!
Can you try with latest 2.3.20 fromhttps://repo.dovecot.org please? 2.3.13 is
quite old already.
Aki
On 10/08/2023 18:16 EEST IB Development Team via dovecot<dovecot@dovecot.org>
wrote:
Hi,
If SMTP server rejects RCPT with message
aaa bbbbbbbbbb ccccccc dd eeeeeeeeeeee ffffffffffff gggggggggg hh
iiiiii jj kk llll mmmmmmmmmm nnn o ppppppppppppppp rrrrrr ssssss t
uuuu w xxxxxxx yyyyyy zzzzzzzz aa bbbbbbbbbbb cccccccc dd eeeeee fff
gggggg hhhhhhh iiiiiiii jj kkkkkk ll mm nnnn ooooo ppppppp qqqq r
ssss tttttt uuuuuuuuuuuuu www xxx yyyyyyy zzzzz aaaaa bbbbbbbbb ccc ddddddd
when submitting message via dovecot submisstion server, dovecot panics:
2023-08-10 17:10:04 myhost exim[...] rejected RCPT <[...]>: aa
bbbbbbbbbb ccccccc dd eeeeeeeeeeee ffffffffffff gggggggggg hh iiiiii jj
kk llll mmmmmmmmmm nnn o ppppppppppppppp rrrrrr ssssss t uuuu w
xxxxxxx yyyyyy zzzzzzzz aa bbbbbbbbbbb cccccccc dd eeeeee fff gggggg
hhhhhhh iiiiiiii jj kkkkkk ll mm nnnn ooooo ppppppp qqqq r ssss
tttttt uuuuuuuuuuuuu www xxx yyyyyyy zzzzz aaaaa bbbbbbbbb ccc ddddddd
2023-08-10 17:10:04 myhost dovecot:
submission(test)<7274><bAOu/ZICuuDAqHoB>: Panic: file
smtp-server-reply.c: line 625 (smtp_server_reply_send_real): assertion
failed: (text[0] == '-')
2023-08-10 17:10:04 myhost dovecot:
submission(test)<7274><bAOu/ZICuuDAqHoB>: Error: Raw backtrace:
/usr/lib/dovecot/libdovecot.so.0(backtrace_append+0x42) [0x7f64c8e484e2]
-> /usr/lib/dovecot/libdovecot.so.0(backtrace_get+0x1e) [0x7f64c8e485fe]
-> /usr/lib/dovecot/libdovecot.so.0(+0xfc49b) [0x7f64c8e5449b] ->
/usr/lib/dovecot/libdovecot.so.0(+0xfc531) [0x7f64c8e54531] ->
/usr/lib/dovecot/libdovecot.so.0(+0x53aee) [0x7f64c8dabaee] ->
/usr/lib/dovecot/libdovecot.so.0(+0x4751c) [0x7f64c8d9f51c] ->
/usr/lib/dovecot/libdovecot.so.0(+0x7b605) [0x7f64c8dd3605] ->
/usr/lib/dovecot/libdovecot.so.0(+0x122171) [0x7f64c8e7a171] ->
/usr/lib/dovecot/libdovecot.so.0(io_loop_call_io+0x69) [0x7f64c8e69f59]
-> /usr/lib/dovecot/libdovecot.so.0(io_loop_handler_run_internal+0x132)
[0x7f64c8e6b592] ->
/usr/lib/dovecot/libdovecot.so.0(io_loop_handler_run+0x50)
[0x7f64c8e6a000] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_run+0x40)
[0x7f64c8e6a1c0] ->
/usr/lib/dovecot/libdovecot.so.0(master_service_run+0x13)
[0x7f64c8de04e3] -> dovecot/submission(main+0x4df) [0x562f3ac7c11f] ->
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xea) [0x7f64c8ba4d0a]
-> dovecot/submission(_start+0x2a) [0x562f3ac7c1aa]
Error message is configured in exim4.conf with
begin routers
mytestrouter:
[...]
cannot_route_message = aa bbbbbbbbbb ccccccc dd eeeeeeeeeeee
ffffffffffff gggggggggg hh iiiiii jj kk llll mmmmmmmmmm nnn o
ppppppppppppppp rrrrrr ssssss t uuuu w xxxxxxx yyyyyy zzzzzzzz aa
bbbbbbbbbbb cccccccc dd eeeeee fff gggggg hhhhhhh iiiiiiii jj kkkkkk
ll mm nnnn ooooo ppppppp qqqq r ssss tttttt uuuuuuuuuuuuu www xxx
yyyyyyy zzzzz aaaaa bbbbbbbbb ccc ddddddd
Dovecot installed from up-to-date Debian 11 package:
# dpkg -s dovecot-core | grep Version
Version: 1:2.3.13+dfsg1-2+deb11u1
--
Regards,
Paweł Bogusławski
IB Development Team
E:d...@ib.pl
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--
Regards,
Paweł Bogusławski
IB Development Team
E:d...@ib.pl
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