On Fri, 2008-09-26 at 12:17 +0200, Nicola Tiling wrote:
> We have trouble with a program that uses a microsoft mail routine. It
> sends the SASL auth Parameter in lower case but exim only allow upper
> case
Are you sure?
> AUTH login
> 503 AUTH LOGIN or AUTH PLAIN OR AUTH CRAM-MD5 OR AUTH MSN is REQUIRED
Mine doesn't do that (Exim 4.69), but does this instead:
> AUTH LOGIN
> 334 VXNlcm5hbWU6
> Exim refer to RFC 2222 (Manual: "33.1. Generic options for
> authenticators" / "public_name") but it seems RFC 2222 and RFC 2554
> are opposite at this point.
>
> RFC 2554 says the SASL auth_type has to be case insensitive ("ALPHA/
> DIGIT"). But RFC 2222 says the SASL mechanism is named only upper-case.
>
> The customer insists that exim has to perform RFC 2554 and he says
> other MTAs like sendmail do so.
The config section you mention states:
"These names should contain only upper case letters, digits,
underscores, and hyphens (RFC 2222), but Exim in fact matches them
caselessly."
I don't think you're connecting to an Exim server there at all, mainly
because the term REQUIRED (alone) in capital letters does not appear in
the Exim source code anywhere.
Is there a Cisco device (or some other security device like ISA server)
between the two, perchance? Something is intercepting the traffic, or
you're otherwise connecting to the wrong box...
Graeme
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