My Plesk 7.5.4 server is set up for SMTP Auth required. I have several questions about this, and how to configure it. 1. What advatages / side effects are there to setting a POP3 Lock time? 2. I have a new client who want to host their mail with me, but they have been the victim several times of viruses that mass mail. Would it be advantageous to making them use their ISP's SMTP service, and my servers POP3 facility instead? What stops them guessing that the incoming and outgoing mail server names are the same though? 3. Is there a way to monitor qmail queues and usage? There may be more questions later!