Bug#343085: exim4: Exim SMTP_AUTH hangs since today for important german provider (1und1)

[Marc Haber]

On Mon, Dec 12, 2005 at 03:37:17PM +0100, Dr. Jürgen Pfennig wrote:
> Since today "exim4 -qf -v" showed that the connection hangs after
> TLSSTART. The thing has worked well for several months before. An update
> from 4.50 (sarge) to 4.54 (test) to not solve the problem. After
> disabling TLS I can send mail again.

Do you have enough entropy available?
cat /proc/sys/kernel/random/entropy_avail to see the amount of
available entropy.

> (1) Assuming that it's a provide side bug - Please improve documentation on
>     how to disable TLS and using PLAIN TEXT

Send patch.

Please don't make it too easy because a security feature once disabled
for debugging will not get enabled again on most incompetently
administrated installations.

> (2) If it's not a provider side bug - could it be fixed?

authmailonline.kundenserver.de seems to to TLS just fine with my exim.

> Additional info: my exim log contained occasional entries like:
> 
> 2005-12-06 21:29:09 1EjicG-0006au-Px TLS error on connection to
>   authmailonline.kundenserver.de [212.227.15.164] (gnutls_handshake):
>   A record packet with illegal version was received.

That seems normal and is probably a GnuTLS issue.

Greetings
Marc

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