[Dovecot] SASL AUTH LOGIN mechanism problems

[Anders Karlsson]

Hi all,

Have anyone had problems with Exhange 2003 servers trying to use sasl  
against Postfix+Dovecot SASL using the AUTH LOGIN Mechanism ?

I've done some smtp debugging, and it seems that Exchange sends the  
usename at the same time as AUTH LOGIN i.e:

AUTH LOGIN <base64_username>

It then expects to be able to send the password.

mech-login.c silently discards all data after AUTH LOGIN and just  
prompts the username prompt whetever the username has already been  
supplied during initial AUTH LOGIN request.

I've attached a patch to make mech-login.c check if additional data  
has been sent along with AUTH LOGIN, and in this case skip ahead  
directly to the Password: prompt.

Cheers
Anders


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