In addition to sending an email address in PM, please also include a first and Last name to address the invitation to. The name is required to send the invite.
It probably blocks any attachments it doesn't recognize. My email account here blocks all attachments that are not .zips I think.
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When a cat is dropped, it always lands on its feet, and when toast is dropped, it always lands with the buttered side facing down. I propose to strap buttered toast to the back of a cat. The two will hover, spinning inches above the ground. With a giant buttered cat array, a high-speed monorail could easily link New York with Chicago.
That's not it. It claims to block executables, even if they are zipped. My tests have shown otherwise--a renamed executable (I changed the extension to stufft) makes it through unfiltered.
Also, the ZIPPED pbw file was blocked but when I sent the .gam file itself without zipping, it went through.
Thus, it apparently does not filter on "unknown extension" ...