> I remember when GMail started stripping out .exes from emails so we would start sending exes inside of zips. Then GMail started inspecting .zip files so we would change the file extension to .zip2. Then Google started detecting ZIP signatures so we started sending encrypted zip files just so we could email exes to each other.

I recently emailed a zip file containing an .exe through gmail. Gmail refused to send it when the file extension was .zip, but saw nothing wrong with the same file as a .dat . Has there been a policy change?