We have a virtual smtp server setup to handle incoming and outgoing mail. Our connection is set to all computers and our relay is set to just our internet IP address. First question, Is that a good way on a security aspect of it? Second question, If I am on my laptop and dial up to access the internet I can not send mail to anyone other that people inside our own domain. Example: if I am plugged in to the network at the office I can send email to anyone on the web with no problem but if I dial up say from my home I can't send the mail to anyone that does not have our company domain with out getting a relay error? Any help 
