What is the correct mime-type for serving an iPhone .ipa file?

Question

I\'m trying to post .ipa files onto our apache web server for our beta testers to download. Currently I\'m using the following line in .htaccess to serve the files:

Answer 1

I voted up the other answers as they were both helpful, but this is what I ended up needing to fix the problem.

AddType application/octet-stream .ipa

  Header set Content-Disposition attachment