Re: [exim] Migrating from qmail to exim question

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Author: Miguel Lanz
To: Ian Eiloart
CC: <>
Subject: Re: [exim] Migrating from qmail to exim question
Thanks for your feedback guys I really appreciate it.

I installed courier-imap and courier-imap-auth.

My question is:

where do I configure exim and courier-imap to work together. what setting
do I need to configure on exim.conf file. Also openldap server runs on an
external server how to I tell exim to use it so that users can
authenticate through their e-mail clients using IMAP and their network

also when I sent my self a test e-mail using just exim right after I
installed it, it places the e-mail under /var/mail/$USER instead of
creating a Maildir folder for the user.

Thanks for your help.

On Tue, May 15, 2012 at 6:01 AM, Ian Eiloart <iane@???> wrote:

> On 14 May 2012, at 19:59, Miguel Lanz wrote:
> > Hello everyone,
> >
> > 1st of all thanks for taking the time to read and reply to my inquiry
> here.
> >
> > I am very in-experienced when it comes to mail server administration,
> > however I was assigned a task to migrate an existing qmail server running
> > on a ubuntu 8.0 server to a new opensource mail server that will be
> > install and setup on a fresh redhat enterprise version 6 server.
> >
> > doing a bit of research I came across exim and it seems a really good MTA
> > choice for our purpose specially being open source. ( we can't afford to
> > have any commercial products )
> >
> > Is there any good documentation out there that can help me, guide me
> > through migrating 300 mail boxes from qmail server to exim serve
> There's no mailbox migration to be performed, except to copy the email to
> the new machine. Exim is responsible for two things:
> 1. Accepting inbound email, and putting it into the right courier-imap
> mailbox.
> 2. Accepting authenticated email submissions from your users' mail
> clients, and delivering them either locally or to third parties.
> Courier-imap stores the emails, and serves them up to users when they log
> in with their mail clients. You don't need to change this, or move any
> emails.
> Exim can use openldap for authentication.
> What you call your "qmail server" is actually a ubuntu server. Qmail is a
> process that runs on that server, alongside courier and openldap. You
> simply want to replace Qmail with Exim.
> > our
> > current qmail server uses the Maildir format and we would like to keep
> the
> > new one that way, also runs courier-imap for IMAP on ports 143 & 993, we
> > don't use POP3, and all users in qmail server authenticate to their
> e-mail
> > accounts through an openldap server that is hosted on the qmail server as
> > well. Our current qmail server does not have any aliases setup nor
> virtual
> > domains.
> >
> > One option I was looking at for IMAP service on the new server is
> dovecot.
> That might require mailbox migration. It might also then require
> reconfiguration of Exim. It's probably better to do this as a separate
> process.
> > I would like to test this procedure on a VM that I have setup but am
> > planning on deploying to a production environment in the next 2 weeks.
> >
> > Any help would be greatly appreciate it.
> --
> Ian Eiloart
> Postmaster, University of Sussex
> +44 (0) 1273 87-3148

Edgar Lanz

"If nobody is perfect I must be nobody"