[Citadel Support] configuring for multiple domains

[bilcorry]

I'd like to have Citadel configured for multiple domains, and am hoping for
some pointers to do so.

(1) For every domain, I'd like a [EMAIL PROTECTED] to be an alias to my
mailbox.  Do I specify each alias, such as [EMAIL PROTECTED],
[EMAIL PROTECTED], etc.  Or can I just specify "postmaster" and it'll be
generic across all domains? 

(2) Some email addresses are unique to a domain, such as [EMAIL PROTECTED]
will be an alias for one person, while [EMAIL PROTECTED] will be an alias for
another.  I read the FAQ that said it could be done so long as there wasn't a
user called "info".  Is that correct?

(3) Which leads to my next question, in order to allow users to be unique
across the domains, I thought I'd make their username be "[EMAIL PROTECTED]" -
that way it's always unique and won't conflict with other domains.  Can I do
that?  In testing, I can't get mail delivered and I'm not certain if that's
the issue.

(4) Speaking of not being able to get mailed delivered, is there a FAQ on how
to troubleshoot it?  Messages are rejected as: 550 Invalid recipient:
[EMAIL PROTECTED] @ mail  -- where [EMAIL PROTECTED] is the username and mail is
the node.  I tried changing the node to mail.domain.tld, but then the message
is rejected as 550 Invalid recipient: [EMAIL PROTECTED] @ mail.domain.tld.

 

Thanks!

 - Bil