I can't attach files over a certain size

While SendSafely does not have any file size restrictions, Outlook may still prevent you from trying to attach a large file using SendSafely. This can be corrected by modifying your Outlook registry settings using the Windows Registry file linked below.

After downloading the file, you will need to double-click and run the file on the machine where Outlook is installed (when prompted, choose "Allow" or "Yes").  You will need to restart Outlook for the new setting to take effect.