Mail testing (again)

Couple of useful sites to help check out your mail server.

Basic SMTP check: http://mxtoolbox.com/diagnostic.aspx

Tools to check TLS with: http://checktls.com/

SMTP test: https://www.wormly.com/tools

And of course can always telnet to port 25 or 587 and simulate a typical transaction:

EHLO atmob.org

MAIL FROM:me@here.com
RCPT TO:you@there.com
DATA
Subject: manual test 1

.

(entered one line at a time, including the blank lines)