Re: AW: Sendmail virtual users

From: David Lang (
Date: Mon Jan 10 2000 - 17:48:11 EST

the problem is not sendmail, it is whatever you use to retreive the
mail. Unlike NT solutions unix is a pile of interchangable pieces to do
the various jobs. Sendmail, Qmail, and others you will see mantioned send
the messages from one machine to another, when the mail arrives on the
destination machine they put the mail into a mailbox. The program that
provides the POP3/IMAP4 interface to that mailbox is completely

Sendmail can seperate the mail into seperate mailboxes as many people have
shown you. The problem is retreiving that mail. The default access that is
provided only asks for a userid, not a userid@domain so it cannot deal
with duplicate userids (note it can easily deal with info@foo and info@bar
as long as the mailboxes are not both named info, info1 and info2 would
work) There are a few pop server programs that can deal with multiple
domains. I personally have chosen to not use them (lack of trust on my
part as to their reliability and scalability) and have instead gone with
the cyrus mail server and forcing non-duplicate userids. It is a solution
that I know can scale and I accept dealing with the issue "I need another
info@domain for this new domain, there login is info21"

David Lang

 On Sat, 8 Jan 2000, Grischa Schuering wrote:

> Date: Sat, 8 Jan 2000 20:37:58 +0100
> From: Grischa Schuering <>
> To: 'Agim Cami ' <>,
> "' '" <>
> Subject: AW: Sendmail virtual users
> Thanks for your answer. But if I undestood the infos given here right,
> sendmail only offers you virtual email aliases but not different virtual
> domain mail servers with same user accounts for each domain.
> You have to create accounts like
> info-domain1 ->
> info-domain2 ->
> The application on Windows NT I know can handle virtual domain email servers
> like this:
> info ->, on virtual mail server
> info ->, on virtual mail server
> both users are on the same machine but on different ip's.
> actually i need a way to set up virtual user accounts just for mail, that
> don't need a login on the machine they are running. and since the unix
> automatically adds a email accont for every user that is entered into the
> system, it might be a hard thing to accomplish.
> maybe some knows a solution,
> regards,
> g.
> -----Originalnachricht-----
> Von: Agim Cami
> An: Grischa Schuering;
> Gesendet: 08.01.00 10:04
> Betreff: Re: Sendmail virtual users
> Yes you can and is very easy.
> You have to proceeded through this HOW-To-Document
> Regards,
> Agim Cami
> >Hello,
> >
> >is it possible that you have a user name, e.g. info, and the email
> adress
> > that you have another user name that is info, for
> another
> >domain for email access.
> >
> >My question is, can I have virtual domains and virtual email domain
> user
> >accounts with sendmail ?
> >
> >greetings,
> >
> >grischa
> >-
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