<div dir="ltr">I've used Exim + Courier-IMAP a lot on the back end and even integrated it via LDAP to active directory.<div><br></div><div style>The front-end probably matters a lot more than the back end if you are looking for features. I usually use Horde Groupware for that as it includes Calendars, Mail, Tasks, address book, etc.</div>
<div style><br></div><div style><a href="http://horde.org">http://horde.org</a></div><div style><br></div></div><div class="gmail_extra"><br><br><div class="gmail_quote">On Mon, May 13, 2013 at 6:12 PM, Mike Haun <span dir="ltr"><<a href="mailto:haun.mike@gmail.com" target="_blank">haun.mike@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">I am needing to build an email server that runs on Linux. I'd like to have a full set of features, and most important, it has to be able to send and receive securely. I like open source solutions, but this is not mandatory. I have not begun any research yet, but I wanted to put this out on the list first to see if anyone had any recommendations. Thank you.
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