From: Wietse Venema (wietseporcupine.org)
Date: Tue Jul 31 2007 - 18:16:04 CDT

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Patrick - South Valley Internet:
> Hello,
>
> I hope I'm asking the right question. I am switching all our accounts
> to Virtual Mail accounts, so that users will need to have
> USERNAMEdomain.ext in order to log in.
>
> Is there a way in Postfix to append the domain.ext when they log in,
> without them reconfiguring anything on the customer's end? All our
> customers are using USERNAME to log in, but since I want to make this
> migration as painless as possible, I was hoping there would be a
> variable/configuration change I can make that will append the
> domain.ext so they would not have to reconfigure their mail client.
>
> Is this possible?

Everything is possible but it would happen in the SASL software,
not in Postfix.

The Postfix SMTP server has no clue about the content of SASL login
messages. It just passes data between the remote SMTP client and
the SASL library or the Dovecot authentication server.

        Wietse

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