http://www.exchangepop3.com/
Listed as...
[Exchange POP3] ...is an email gateway (connector) that retrieves messages from Internet POP3 email accounts (IMAP also supported) and delivers them to Exchange Server. Exchange Server only supports expensive SMTP connections. Save money with eXchange POP3 by using any inexpensive Dial-Up or DSL/Cable connection and one or more Internet POP3 mailboxes. But, that's not all... eXchange POP3 protects your organization from dangerous and unwanted (spam) email and gives you complete control over messages entering and leaving your network.
I installed this, giving it a test run. Instead of routing to my Exchange, of course, I routed it to my IIS SMTP box. Added an account for download... and did a "Send/Receive". It opened multithreaded connections to my POP3 server, then hung quite nicely. It was at this point that I noticed that the darn thing wasn't running/installed as a system service! Found that in the config... and the program had managed to lose the account I configured. Probably 'cause the console app had hung...
I deliberately sent it to a mailbox with 1500 pieces of mail. The thing died under load on the first run, and almost dragged the test system with it. It sat there at 100% CPU, and NOTHING came in at all. It wasn't as if it was actually PRODUCTIVE. It just hung.
Worse, it seems to do a "virus scan" by saving it to the system and relying on a On-Access scanner to take care of the file access. That's just ASKING for trouble. To have a virus scanner rip the file out of the hands of the program... I imagine it must crash a whole lot.
I uninstalled the product. A command window came up! Whatever...
I then Googled and found:Kinesphere eXchange POP3 Buffer Overflow Vulnerability http://archives.neohapsis.com/archives/secunia/2004-q2/0176.htmland exploit code showed up: http://www.frsirt.com/exploits/04212004.Exch.pl.phpThe Secunia database shows the problem, 'patched': http://secunia.com/product/3411/
Kinesphere Exchange POP3 is one product to stay away from. Don't touch it. Use GFI's limited, barebones, but extremely reliable and functional POP2Exchange in MailEssentials. This product is unreliable, and unstable. Its poorly designed.