Hi, In Plesk 7.5.4 i have the option to fully close the SMTP service. But where does Plesk configure that ? What does it modify for that setting. I have 2 SMTP instances now ... one very RBL'ed daemon at port 25 .. and another with less RBL's for clients at another port. But i want to close (only) the SMTP server at port 25 for relaying.