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Hello everyone. After several days, I have finally managed to get my mail server system up and running (though I first tried this several years ago). I'm using postfix with TLS and SMTP AUTH and courier-imap with imap-ssl only. The question I have is how do I restrict the users that can use these services. I tried adding the following line to /etc/pam.d/imapd and /etc/pam.d/other and adding a userlist to /etc/pam.users: auth required /lib/security/pam_listfile.so item=user sense=allow file=/etc/pam.users onerr=fail I added this before the other auth lines, but did not comment out or delete the existing lines. I have no idea what I'm doing with PAM. Despite this line, root is still allowed to use the email system- both imap and smtp. As you might imagine, this is hardly desirable. I also want to restrict it to just the users I say, to make sure that no other special accounts can be used. Thanks in advance Simon -- The Mailing List for the Devon & Cornwall LUG http://mailman.dclug.org.uk/listinfo/list FAQ: http://www.dcglug.org.uk/linux_adm/list-faq.html