Email File size
I sent an Email with a 22.1MB file size attachment, that I got a failure to deliver notice, saying the file size was too large. Checking online, it says that it will send up to 25MB.
and it wasn't...
Forum Discussion
The thing with attachments is they're uploaded in 8bit but converted to 7bit during transmission due to how email works so you have to account for some overhead when attempting to attach anything to an email. If you want to transmit large files you're better off using something like DropBox, Google Drive, OneDrive.
