eXchange POP3 6.0 could be downloaded from the developer's website when we last checked. We cannot confirm if there is a free download of this software available. The actual developer of the software is Kinesphere Corporation.
We recommend checking the downloaded files with any free antivirus. You can install this PC software on Windows XP/XP Professional/7/8/10/11 32-bit. Address.exe or kadmin.exe are the common file names to indicate the eXchange POP3 installer. EXchange POP3 is categorized as Communication Tools. The most popular versions among eXchange POP3 users are 6.0 and 5.0.
From the developer:
eXchange POP3 is a gateway connector that downloads messages from Internet mailboxes using the POP3 or IMAP protocol. It then determines the proper recipient(s) for each message and sends them to Exchange Server using the SMTP protocol. eXchange POP3 can also receive Internet-bound messages from Exchange Server and relay them to the Internet.
You may want to check out more software, such as 2010 Exchange EDB to PST, Exchange Recovery Software or Lepide Exchange Recovery Manager, which might be similar to eXchange POP3.