When I add an SSL certificate to the SMTP virtual server in exchange, all inbound email to the exchange server bounces back to the sender. Let me clarify that the problem is with people using outside mail servers and sending into our exchange server. The error kicking back is as follows:
" Technical details of permanent failure:
PERM_FAILURE: tried to deliver your message, but it was rejected by the recipient domain. The error that the other server returned was: 530 530 5.7.0 Must issue a STARTTLS command first (state 13)."
Now the reason I am putting a certificate on the smtp virtual server is 1.) So my users outside the firewall can connect securely to send mail through and 2.) So a valid username is not compromised by a hacker when an outside mailserver tells my mail server who the email is for.
Just clarifying because there is a lot out there about putting a certificate on the pop3 virtual server but not the smtp
Thanks for you help ahead of time !!
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