Problem relaying through Virginmedia (ntlworld) with authentication

[Nick Howitt]

Hi, My ISP Virginmedia (VM) suddenly made authentication compulsory a couple of days ago. I use Thunderbird relaying through postfix. I did have it working a few years ago on port 587 but now they want port 465. In main.cf I've set: smtp_sasl_auth_enable = yes smtp_sasl_security_options = noanonymous relayhost = [smtp.ntlworld.com]:465 smtp_use_tls = yes I've set the password correspondingly and "postmap -q [smtp.ntlworld.com]:465 /etc/postfix/sasl_passwd" returns my.usern...@ntlworld.com:my_password. With this set up I always fail with messages like: Jan 14 17:34:43 server postfix/smtp[792]: 9F8F2E258E: to=<my.acco...@gmail.com>, relay=smtp.ntlworld.com[62.254.26.221]:465, delay=13, delays=0.03/0.08/13/0, dsn=4.4.2, status=deferred (lost connection with smtp.ntlworld.com[62.254.26.221] while receiving the initial server greeting) I've tried with and without [ and ] - there is no MX record for smtp.ntlworld.com. The same set up works fine with gmail.com on 587. Thunderbird connects and sends correctly directly to smtp.ntlworld.com on 465 with similar settings (normal password, SSL/TLS). It just seems that I can't get postfix to connect. Can anyone help me? Thanks, Nick