[Exim] FYI: Exim 4.21 and SMTP AUTH via TLS: Opera 7.11 need…

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Autor: Ralf G. R. Bergs
Data:  
A: exim-users ML
Assumpte: [Exim] FYI: Exim 4.21 and SMTP AUTH via TLS: Opera 7.11 needs tls_remember_esmtp
Hi there,

I upgraded to 4.21 only one hour or so after 4.21 was released, and today a
customer complained that they can't send mail anymore.

Upon further investigation I found out that they were using Opera 7.11 (Win32),
and that they were sending mail via TLS using SMTP AUTH.

The problem was obviously with Exim's changed behavior WRT AUTH after STARTTLS
without a new EHLO. Up to 4.20 Exim would allow this, since 4.21 Exim defaults
to inhibiting this, giving an error message like follows:

    2003-08-17 20:17:45 SMTP protocol error in "AUTH LOGIN"
        H=the.client.host [a.b.c.d]:4045 AUTH command used when not advertised


The solution to this problem is to define

    tls_remember_esmtp = true


to restore the old behavior.

Hope this helps,

Ralf


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