1st Subscription Manager - is a simplest and fastest way to Extract business emails from your regular POP3 mailbox. When your clients subscribe or unsubscribe using an email message with a certain subject, you can use this utility to grab the messages they produced from any POP3 mailbox and then feed them to address book of any email program such as Outlook Express or Advanced Emailer.
Here are the major features of 1st Subscription Manager:
It's FREE.
Great addition to Advanced Emailer emomail
Very lightweight program, easy to set up and use.
Connect to any POP3 compatible mailbox anywhere and grab the messages from there.
You can specify which words to look for in the subject line.