Email Attachment -- internal server "record keeping" ?

What software do you recommend that
can do something like the below, automatically
forwarding the email attachments to an internal
Windows 2012 R2 file server or GOOGLE DRIVE
for record keeping ?
 1. someone emails MyCompanyName@gmail.com
      with 5+ Word, Excel, etc attachments
 2. system automatically saves attachments to a file server,
     making sure to NOT save bogus .EXE and other virus
     attachments

I assume this might be RISKY since we do NOT
know what types of viruses might be in the macros/etc ?