I have a problem about SMTP relaying in my infrastructure. I allow the ServiceDesk server internal ip address to relay through my exchange server. I also set the SMTP settings on the WEB UI at administration / mail server settings.

When I try to send mail from a ticket I get an error immediately on the form that cannot send mail and I also see it on the support / logs but no specified information can viewed except the following message: "Exception while trying to send notification for Request ID : 1 Mail sending failed."

I've read all similar articles about this issue but I didn't find any solution for my problem. Because I checked the relay settings on exchange server and tried to send mail via telnet with success from the ManageEngine ServiceDesk server.

I'm waiting for your tips to solve this.

Thanks in advance!

Sandor