It is becoming increasingly common for ISPs across the world to block the standard port 25 for SMTP. This is an attempt to stop spam-bots from sending their mails around the world and as such is probably a good idea. In order to workaround this issue we have opened a new SMTP port in addition to the others we currently support.
To use the new workaround set your Outgoing mail SMTP port to 2525 (instead of 25, 465 or 587)
