The process that converts 8-bit binary to the 7-bit protocol allowed
in mail increases the sent attachment size by some 33%. As to why
Vista initially gives a bigger size, it includes the total disk space
taken up, which is somewhat more than the actual data in the file.
Gary VanderMolen, MS-MVP (Mail)
"wagster" <wagster@xxxxxx> wrote in message news:B222D32E-64A3-4232-B807-78519CDD0194@xxxxxx
> I'm trying to email a file to someone with a 5MB attachment limit. Vista
> reports the file size as 5.4MB. When I attach it to an email, Windows Mail
> reports the filesize as 4.56MB. When I hit "Send", the Windows Mail Outbox
> reports a filesize of 6.2MB - despite the fact that the entire email consists
> only of the attachment and the words "Here you go."
> What's going on and how big is my file?
> PS. I sent it via FTP in the end. I'm not looking for a solution, I just
> want to know why my file gets first smaller, then bigger.