On Monday 15 Dec 2008, Dinesh Shah (દિનેશ શાહ/दिनेश शाह) wrote:
Not related to WiMax but Reliance Broadband help desk told one of my colleague that she needed to buy a static ip address (Rs. 2K/yr) to send outgoing messages from Thunderbird client over port 25. Ditto for Outlook. :(
Nowadays, all SMTP submission is done over SSL port which is generally 993. You need Port 25 only if you want to run your own mail server or your mail provider does not give secure submission.
Please check if the other SMTP submission port(s) are open.
Won't help, since you still need to make an SMTP connection, and then negotiate it (using STARTTLS) into a TLS connection. I don't believe there's any way to start a TLS connection directly, though I wuld be happy to be proven wrong.
Regards,
-- Raju