[exim] [SOLVED partially] Problems with inbound connections …

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Autor: Heiko Schlittermann
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Dla: exim-users
Temat: [exim] [SOLVED partially] Problems with inbound connections from outlook.com
Heiko Schlittermann <hs@???> (Do 23 Feb 2017 10:03:36 CET):
> Hi,
>
> we're operating a legacy system with Exim 4.80 (the Debian build). It
> uses GnuTLS 2.12.20. We do *not* use the Debian configuration scheme but
> an own one.


If I build an Exim 4.88 with the same version of GnuTLS it still doesn't
work (outlook.com drops the connection). Maybe the do not like the
ciphers?

> 00:35:19 24998 cipher: TLS1.2:RSA_AES_256_CBC_SHA256:256


It differs from successful connections with OpenSSL:

    TLSv1.2:ECDHE-RSA-AES256-SHA384:256


I've now built Exim 4.88 with OpenSSL and the issue went away.

Conclusion: Outlook.com doesn't like GnuTLS 2.12.20 with the Exim
default settings. Nobody else having that issue?

    Best regards from Dresden/Germany
    Viele Grüße aus Dresden
    Heiko Schlittermann
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