SmartPOP2Exchange works with any SMTP server. Since it uses the SMTP protocol to send/deliver the mail to the server, it just has to be able to communicate to port 25 (changeable) of the SMTP server.
Since version7.0 of SmartPOP2Exchange it saves its settings in an XML files in the "%COMMONAPPDATA%" folder:
C:\Documents and Settings\All Users\Application Data\JAM Software\SmartPOP2Exchange\SmartPOP2ExchangeSettings.xml
You can easily include your SmartPOP2Exchange (the XML file) settings in your backup by adding this file.
Addresses added by a SmartPOP2Exchange action are added to an auto-whitelist/blacklist, so these addresses are not listed in the Spam filter options. You can find the files for the auto-whitelist/blacklist under "%COMMONFILES%\JAM Software\SpamAssassin\etc\SpamAssassin\" (JAMAutoWL.cf or JAMAutoBL.cf)
We do not recommend this setup, because a POP3 is not designed to hold large amounts of mail messages and can get extremely slow. However, you can use the rules engine of SmartPOP2Exchange to send a copy of every incoming message to any email address you want; so you can create a "backup" Exchange account and store your messages there. For leaving mail messages on server the IMAP protocol should be used. IMAP is also supported by SmartPOP2Exchange.
To solve this problem you have to do a workaround using a rule. Create a global rule using the condition "Messages with a size bigger than [enter size limit here]". As action choose "Save attachments to [enter a save path here]" and check the "Add path of save attachments to message body" option. Also add the action "Forward without attachments".