Ralph,
Yes you can definitely submit it as two files. If the system creates an account for you via that email then you can also login and add a response to the ticket and attach the 2nd file.
As far as the file situation I will check the settings on the server, but keep in mind there is always an actual 'on-disk' file size that actually varies from the files size quoted in Windows, etc. it's the 'on-disk' file size that you have to look at.
Thanks,
Jim