First off I am new to Webmin so bare with me. The only problem I am having right now is making my mail server work. I enabled Postfix and had everything in my email client configured correctly. When I would try to retrieve mail it would say that the host could not be found. I then saw that Dovecot IMAP/POP3 Server was not installed so once I had installed it my email client did find the host. I then wanted to test the mail server I sent an email from another provider to my mail server only to receive a bounce email back saying that the email could not be delivered for 3 hours. Anyone have any insight on this type of problem?