[email protected]:
> Wietse, thank you for your efforts. Telnet isn't telling me anything
> new:
>
> Trying 17.172.34.70...
> Connected to st11p00mm-mx006.me.com.
> Escape character is '^]'.
> 220 st11p00mm-smtpin012.mac.com -- Server ESMTP (Oracle Communications
> Messaging Server 7u4-27.08(7.0.4.27.7) 64bit (built Aug 22 2013))
>
> As you can see, I'm getting an immediate 220 from them which postfix
> apparently is not getting. I can, of course, continue the telnet
> session and send a complete email which is received by the recipient.
And so can Postfix. One SINGLE SMTP connection from Postfix is likely
to proceed just as well.
Wietse