Restricted SMTP Service
Posted on 2006-07-13
Cannot send email to one particular address. When trying to telnet get this response to MAIL FROM command: 550 5.7.1 Restricted SMTP service.
Using Exchange 2000 running under Windows 2000 server. Exchange System Manager tracker reports these message at "SMTP: Started Outbound Transfer of Message" for a long time, then eventually we'll get an NDR. the receiving mail server reports "timeout wait for input" from my server and my server "did not issue MAIL/EXPN/VRFY/ETRN during connection to MT4"