[exim] lots of "string_sprintf expansion was longer than 327…

Hi all,

i just found a lot aof unhandled fragments of emails in my input directory.

The corresponding message in the log is just:


2014-04-20 23:52:03 1Wbzed-0007gr-FE string_sprintf expansion was longer
than 32768

the only file left is the data part :

-rw-r----- 1 exim exim 2549239 20. Apr 23:52 ./1Wbzed-0007gr-FE-D

Interessting is, that no other logline is present, no from, no to log,
nor the host who send it.

It's possible that someone tried it via 127.0.0.1 or sendmail_wrapper ,
but without the header file, we wil never know.

As you can see, it's not just one mail:

-rw-r----- 1 exim exim 2549239 20. Apr 05:02 ./1Wbi16-0001Z6-FY-D
-rw-r----- 1 exim exim 2549239 19. Apr 22:02 ./1WbbT3-00078f-QN-D
-rw-r----- 1 exim exim 2549239 20. Apr 19:02 ./1Wbv80-0000fk-2C-D
-rw-r----- 1 exim exim 2549239 17. Apr 16:21 ./1WanBe-000099-CZ-D
-rw-r----- 1 exim exim 2549239 21. Apr 06:41 ./1Wc62o-0001G8-Tp-D
-rw-r----- 1 exim exim 2549239 17. Apr 17:41 ./1WaoR2-0004gb-Nx-D
-rw-r----- 1 exim exim 2549239 19. Apr 05:42 ./1WbMAh-0000Ty-3c-D
-rw-r----- 1 exim exim 2549239 21. Apr 17:11 ./1WcFsU-0000BB-6t-D
-rw-r----- 1 exim exim 2549239 21. Apr 09:01 ./1Wc8EI-0007WY-Il-D
-rw-r----- 1 exim exim 2549239 21. Apr 13:41 ./1WcCbG-0000AR-G0-D
-rw-r----- 1 exim exim 2549239 21. Apr 17:21 ./1WcG29-0001fz-QP-D
-rw-r----- 1 exim exim 2549239 21. Apr 05:31 ./1Wc4x4-0007CD-NN-D
-rw-r----- 1 exim exim 2549239 17. Apr 15:11 ./1Wam5s-0004zY-Vn-D
-rw-r----- 1 exim exim 2549239 20. Apr 05:12 ./1WbiAm-0002vS-IO-D
-rw-r----- 1 exim exim 2549239 21. Apr 23:01 ./1WcLLB-0003Sg-E7-D
-rw-r----- 1 exim exim 2549239 22. Apr 02:31 ./1WcOcQ-0001gi-Pk-D
-rw-r----- 1 exim exim 2549239 19. Apr 02:11 ./1WbIsJ-0003Q9-CL-D
-rw-r----- 1 exim exim 2549239 17. Apr 21:01 ./1WarYb-0003kx-Hs-D
-rw-r----- 1 exim exim 2549239 22. Apr 06:01 ./1WcRts-0007uS-7o-D
-rw-r----- 1 exim exim 2549239 18. Apr 19:11 ./1WbCJp-0006XK-Sp-D
-rw-r----- 1 exim exim 2549239 20. Apr 05:02 ./1Wbi16-0001Z7-IZ-D
-rw-r----- 1 exim exim 2549239 22. Apr 06:11 ./1WcS3X-0001B6-7F-D
-rw-r----- 1 exim exim 2549239 20. Apr 23:52 ./1Wbzed-0007gr-FE-D
-rw-r----- 1 exim exim 2549239 19. Apr 10:22 ./1WbQXe-0008VG-OH-D
-rw-r----- 1 exim exim 2549239 17. Apr 15:11 ./1Wam5t-0004zZ-0b-D
-rw-r----- 1 exim exim 2549239 19. Apr 15:02 ./1WbUuc-0001U0-5u-D
-rw-r----- 1 exim exim 2549239 19. Apr 19:42 ./1WbZHZ-0003BJ-UV-D
-rw-r----- 1 exim exim 2549239 21. Apr 03:11 ./1Wc2lb-0004Ep-DD-D
-rw-r----- 1 exim exim 2549239 21. Apr 04:21 ./1Wc3rL-0005dh-NY-D
-rw-r----- 1 exim exim 2549239 18. Apr 08:41 ./1Wb2UA-00011v-9k-D
-rw-r----- 1 exim exim 2549239 18. Apr 06:21 ./1Wb0Ig-0005Pd-Mv-D
-rw-r----- 1 exim exim 2549239 18. Apr 00:41 ./1WauzV-0007JR-LB-D
-rw-r----- 1 exim exim 2549239 19. Apr 11:32 ./1WbRdO-0002Ph-F0-D
-rw-r----- 1 exim exim 2549239 21. Apr 23:01 ./1WcLLB-0003Sl-L8-D
-rw-r----- 1 exim exim 2549239 20. Apr 20:12 ./1WbwDk-0002PW-3D-D
-rw-r----- 1 exim exim 2549239 21. Apr 08:01 ./1Wc7IE-000714-2w-D
-rw-r----- 1 exim exim 2549239 20. Apr 08:32 ./1WblIK-0006jp-DQ-D
-rw-r----- 1 exim exim 2549239 18. Apr 09:51 ./1Wb3Zu-0003F6-Hf-D


Any ideas what could have caused this ?


paniclog wasn't helpful too, same message there:

/var/log/exim/panic.log-20140427-2014-04-20 23:42:04 1WbzUx-0006KN-M1
string_sprintf expansion was longer than 32768
/var/log/exim/panic.log-20140427-2014-04-20 23:42:04 1WbzUx-0006KO-Mb
string_sprintf expansion was longer than 32768
/var/log/exim/panic.log-20140427:2014-04-20 23:52:03 1Wbzed-0007gr-FE
string_sprintf expansion was longer than 32768
/var/log/exim/panic.log-20140427-2014-04-21 00:52:05 1Wc0aj-0001CZ-5i
string_sprintf expansion was longer than 32768
/var/log/exim/panic.log-20140427-2014-04-21 00:52:05 1Wc0aj-0001Ca-5j
string_sprintf expansion was longer than 32768


best regards,
Marius