I just installed iRedMail on Ubuntu 12.04 lts, fresh install following the tutorial on their website. Everything functions well, including webmail, however sending mail over smtp (port 465) doesn't work at all and I also cannot telnet to the server on that port.
Here's the result of nmap:
rDNS record for xx.xx.xx.xx: xxxxxxxx
Not shown: 991 closed ports
PORT STATE SERVICE
22/tcp open ssh
25/tcp open smtp
80/tcp open http
110/tcp open pop3
143/tcp open imap
443/tcp open https
587/tcp open submission
993/tcp open imaps
995/tcp open pop3s
I tried telling postfix to restart in the hope that smtp would appear on the above but no such luck.
Does anyone with more experience with this have any ideas? Thanks in advance.
edit: Note i have removed iptables for now so that can't be the issue.
Best Answer
As far as I know, iRedMail is used postfix as MTA. So you can see does the smtps is enabled in master.cf. It should be something like