Bdtyktl

I'm the only user on my server, so the default install of postfix/dovecot has been fine until now. But I now have 4 domains and need an email address for each of them. I would like to be able to send/receive with them via pop3 with an email client.

I was following this decent guide until I got to the end and saw the note that it doesn't work in 12.04. I tried this "basic setup" guide which starts with the gem "I assume that you know what an MX record is." (Well no, that's why I need a guide.)

There are surprisingly few guides on how to do this. I understand the security risks; it's only me on the system. A non-flexible solution (where the email addresses are set in stone at the beginning) would even be ok with me, if it was simpler.

You can use Virtual Mailboxes which can be used for multiple domains and then it's also easier to add other mailboxes, aliases and other future domains.

I'm running several Ubuntu LTS 12.04 servers with this configuration using Postfix/Dovecot with IMAPS - you can use pop if you want.

If this is for an external (Internet facing server) then you need to create or point your DNS records MX to your server and add the relevant host entries to your server and Postfix configuration. You need to provide more specifics about your scenario and setup so we can help you further.

Here are some tutorial guides on a mailserver setup that may help you:
https://www.digitalocean.com/community/tutorials/how-to-configure-a-mail-server-using-postfix-dovecot-mysql-and-spamassasin
https://www.exratione.com/2012/05/a-mailserver-on-ubuntu-1204-postfix-dovecot-mysql/

That first guide you refer to with the section that states does not work with 12.04 and above is referring to dovecot.conf file. Here is a sample file that works with 12.04 and I believe 14.04 - you WILL want to modify it to suit your server especially if on the Internet and not just an internal server:

auth default {

  mechanisms = plain cram-md5



  user = root

  socket listen {

    client {

      # The client socket is generally safe to export to everyone. Typical use

      # is to export it to your SMTP server so it can do SMTP AUTH lookups

      # using it.

      path = /var/spool/postfix/private/dovecot-auth

      mode = 0660

      user = postfix

      group = postfix

    }

  }

}





base_dir = /var/run/dovecot/

info_log_path = /var/log/dovecot.info

log_path = /var/log/dovecot

log_timestamp = "%Y-%m-%d %H:%M:%S "

mail_location = maildir:/home/vmail/%d/%n



passdb {

 args = /etc/dovecot/passwd

driver = passwd-file

}





protocols = imap pop3

service auth {

  executable = /usr/lib/dovecot/auth

  user = root

}

service imap-login {

  chroot = login

  executable = /usr/lib/dovecot/imap-login

  user = dovecot

}

service imap {

  executable = /usr/lib/dovecot/imap

}

service pop3-login {

  chroot = login

  executable = /usr/lib/dovecot/pop3-login

  user = dovecot

}

service pop3 {

  executable = /usr/lib/dovecot/pop3

}



service imaps {

  executable = /usr/lib/dovecot/imap

}



service pop3s {

  executable = /usr/lib/dovecot/pop3

}



ssl = yes

ssl_cert = </etc/ssl/certs/ssl-cert-snakeoil.pem

ssl_key = </etc/ssl/private/ssl-cert-snakeoil.key



userdb {

 args = /etc/dovecot/users

 driver = passwd-file

}



valid_chroot_dirs = /var/spool/vmail

protocol pop3 {

  pop3_uidl_format = %08Xu%08Xv

}