Gmail is off and on for me. When it works, it's wonderful. When it's being persnickety I want to scream. My computer's a busy place and I can't afford their constant "glitches".
One tip, Greene. If you go to your general settings, towards the bottom of the page, you can select the option to see the progress bars of your attachments being sent.
I always wait for the progress to be 100% before I send the e-mail so I know if any of the attachments fail to upload. Waiting saves me a lot of aggravation down the road because I have the option to reload it. There's no reloading attachments after the mail is sent.
Linda