Can I stop SMTP for one cpanel account? (I have cpanel account on a shared server) If I cant what kind of server do I need? (vps,dedicated server) Thank You.
You cannot STOP SMPT for a single account using any controlpanel, all you can do is just change the permission of the mail accounts to stop accessing them. I hope you are looking for the same.
Not via Cpanel for a single account, but via WHM (Root) You can stop Exim but thats not a good idea. You can even setup a port other than 25 for SMTP so that only the ones who know that port can use SMTP.