[KLUG Members] A couple sendmail questions

[Adam Tauno Williams]

> When setting up a user for mail do you have to add an user to the os?

It depends upon your mail server.  The default (and rather crappy, slow, and
featureless) University of Washington IMAP server (often referred to as UW IMAP)
does require a POSIX account as it supports no authentication/namespace other
than that of the standard UNIX process.

With Cyrus IMAP there is no necessary correlation between POSIX accounts and
mail accounts.

> If you do, and you have a mail server with multiple domains how does
> sendmail decipher which users are for what domain?

?  The address that was used to send the mail? :)  I'm certain I'm missing what
your asking.

> Is there any good software out there that can manage (Add and delete users,
> etc...)a mail server?  Preferibly web based so there will be no need to
> actually login to the box.

Again it depends upon your mail server.  Sendmail.Com sells a very nice package
for managing sendmail.  There are several admin utilities for Cyrus.  For
UW-IMAP your basically stuck with whatever POSIX user and quota management
utilites are installed.