Postfix and amavis - error on socket when SSL is used

[Seba]

Hi,

I want to setup amavisd 2.71 with Postfix 2.11 on Ubuntu 14.04 LTS but I
get often such errors on the amavisd server:

Feb  1 12:39:29 filter amavis[2564]: (02564-02) (!!)Error on socket: SSL
connect attempt failed error:14092110:SSL
routines:SSL3_GET_SERVER_HELLO:attempt to reuse session in different
context\n

Example log:

Feb  1 13:11:26 filter amavis[2649]: (02649-02) smtp session reuse
(smtp:[5.45.104.114]:10025), 1 transactions so far
Feb  1 13:11:26 filter amavis[2649]: (02649-02) smtp cmd> NOOP
Feb  1 13:11:26 filter amavis[2649]: (02649-02) smtp resp to NOOP (idle
1531.0 s): 421 4.4.2 smtp.mymailserver.de Error: timeout exceeded
Feb  1 13:11:26 filter amavis[2649]: (02649-02) Amavis::Out::SMTP::Session
close, disconnecting
Feb  1 13:11:26 filter amavis[2649]: (02649-02) new socket using
IO::Socket::INET6 to [5.45.104.114]:10025, timeout 35
Feb  1 13:11:26 filter amavis[2649]: (02649-02) smtp greeting: 220
smtp.mymailserver.de ESMTP Postfix, dt: 13.7 ms
Feb  1 13:11:26 filter amavis[2649]: (02649-02) smtp cmd> EHLO localhost
Feb  1 13:11:26 filter amavis[2649]: (02649-02) smtp resp to EHLO: 250
smtp.mymailserver.de\nPIPELINING\nSIZE
52428800\nETRN\nSTARTTLS\nENHANCEDSTATUSCODES\n8BITMIME
Feb  1 13:11:26 filter amavis[2649]: (02649-02) smtp cmd> STARTTLS
Feb  1 13:11:26 filter amavis[2649]: (02649-02) smtp resp to STARTTLS: 220
2.0.0 Ready to start TLS
Feb  1 13:11:26 filter amavis[2649]: (02649-02) (!!)Error on socket: SSL
connect attempt failed error:14092110:SSL
routines:SSL3_GET_SERVER_HELLO:attempt to reuse session in different
context\n
Feb  1 13:11:26 filter amavis[2649]: (02649-02) mail_via_smtp: session
failed: Error upgrading socket to SSL: SSL connect attempt failed
error:14092110:SSL routines:SSL3_GET_SERVER_HELLO:attempt to reuse session
in different context at ./amavisd line 8392.
Feb  1 13:11:26 filter amavis[2649]: (02649-02) (!)xkK1LHEcgGRQ FWD from <
free4cd at googlemail.com> -> <user at mydomain.de>,  451 4.5.0 From MTA() during
fwd-connect (Error upgrading socket to SSL: SSL connect attempt failed
error:14092110:SSL routines:SSL3_GET_SERVER_HELLO:attempt to reuse session
in different context at ./amavisd line 8392.): id=02649-02

I've tried amavisd-new version 2.71 (Ubuntu) and the current 2.10.1 but
with both versions I get the same error.

The problem happens sometimes so mails stucks in the Postfix queue.

How can I solve this problem? Is this more related to postfix or amavisd?

Thanks.
Seba
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