Exim - mail not sent - queued - sigsegv

[sneer]

Hi All,

After upgrade of Exim to 4.99 I've an issue with sending e-mails trough exim on DA hosting server.

Sometimes when someone tries to send e-mail (mobile/app client or roundcube) message is queued on server but not send to recipient.
In exim log I can find:

2025-11-14 10:52:19 1vJqTb-0000000AniG-2V80 <= [email protected] H=localhost (hosting.domain2.com) [127.0.0.1] P=esmtpa A=login:[email protected] S=1415 [email protected] T="1052" fr

om <[email protected]> for [email protected]
2025-11-14 10:52:19 SIGSEGV (fault address: (nil))
2025-11-14 10:52:19 SEGV_MAPERR
2025-11-14 10:52:19 SIGSEGV (null pointer indirection)
2025-11-14 10:52:19 SIGSEGV (fresh-exec: 2574381 initializing
)
2025-11-14 10:52:19 backtrace
2025-11-14 10:52:19 ---
2025-11-14 10:52:19     /usr/sbin/exim(stackdump+0x30) [0x5558331dc98d]
2025-11-14 10:52:19     /usr/sbin/exim(+0x69b91) [0x5558331dcb91]
2025-11-14 10:52:19     /lib/x86_64-linux-gnu/libpthread.so.0(+0x13140) [0x7f685d180140]
2025-11-14 10:52:19     /usr/sbin/exim(host_ntoa+0xa6) [0x5558331f923a]
2025-11-14 10:52:19     /usr/sbin/exim(main+0x1dd0) [0x5558331df319]
2025-11-14 10:52:19     /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xea) [0x7f685cfbad7a]
2025-11-14 10:52:19     /usr/sbin/exim(_start+0x2a) [0x5558331b855a]
2025-11-14 10:52:19 ---

Do you have similar behavior?

When I "retry" from queue message is delivered.


My environment:
Debian 11
DirectAdmin 1.689
Exim 4.99

 

[zEitEr]

Hello,

Same is here on Debian 12:

grep backtrace /var/log/exim/mainlog -A 12

--
2025-11-14 18:27:29 backtrace
2025-11-14 18:27:29 ---
2025-11-14 18:27:29     /usr/sbin/exim(stackdump+0x30) [0x56377a061912]
2025-11-14 18:27:29     /usr/sbin/exim(+0x69b11) [0x56377a061b11]
2025-11-14 18:27:29     /lib/x86_64-linux-gnu/libc.so.6(+0x3c050) [0x7f272b85a050]
2025-11-14 18:27:29     /lib/x86_64-linux-gnu/libc.so.6(+0x15782d) [0x7f272b97582d]
2025-11-14 18:27:29     /usr/sbin/exim(host_ntoa+0xab) [0x56377a07e0ee]
2025-11-14 18:27:29     /usr/sbin/exim(main+0x1bd4) [0x56377a0640b3]
2025-11-14 18:27:29     /lib/x86_64-linux-gnu/libc.so.6(+0x2724a) [0x7f272b84524a]
2025-11-14 18:27:29     /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0x85) [0x7f272b845305]
2025-11-14 18:27:29     /usr/sbin/exim(_start+0x21) [0x56377a03d4b1]
2025-11-14 18:27:29 ---
2025-11-14 18:28:04 cwd=/ 2 args: /usr/sbin/exim -bpu

 

[zEitEr]

Get Exim 4.98.2 Installed with DirectAdmin 1.689 fea2b404f423f49b2954ac93732b10afe6b5195f