> And yes, I mean LOGIN and authenticate. How would I > authenticate for different accounts?
I am still confused here.
>I have several
> for different purposes, and I want replies in that
> account to go back out that account, not over my main,
> which still remains relatively spam-free.
That seem more a MUA problem then a MTA problem. As in, you should handle
that in your mail program.
> So, how do I authenticate differently for different
> accounts?
First of all, does your ISP really use authenticated SMTP? That would be
extremely rare. Else i am still confused over what you intend to
authenticate against?