I'm not sure what you mean by "active to recieve your mail via pop or smtp?"
My setting:
Server only Mode
Email:
E-mail retrieval mode: Standard (SMTP)
Forwarding address for administrative notices: none
E-mail to unknown users: Return to sender
POP and IMAP server access: Allow access only from local network
Enable/Disable Webmail: Enable (secure HTTPS access only)
Delegate mail servers- None
ETRN or multi-drop settings- defaults
I also use no-ip.com for web hosting and us xoops for my website I can send e-mails to users, but they can not send email too me.