>>>>
>>>>Did you know that you can send email to your own account without a username and password? its how emails are actually delivered. Just simply use your own mailserver as the SMTP server. Then send yourself messages without authentication. Same deal for your program.
>
>This isn't true for all SMTP servers.
>
>>>
>>>Are you saying one can use the pop server as smtp server?
>>>
>>>Peter
>>No. The smtp server dumps the messages into folder. A seperate POP3 server runs picking those messages up and handling them.

What servers is this not true for? The only reason that it wouldn't work is if there is a strict spam filter on the box that denies senders from non-reverse dns'able addresses, or dynamic addresses. Are those the ones you mean?