I don't understand how throughout the whole time Gmail was down, it worked for a coworker and me the whole time, but it didn't work for anyone else. We enemy ex

I don't understand how throughout the whole time Gmail was down, it worked for a coworker and me the whole time, but it didn't work for anyone else. We enemy exchanged half a dozen emails to test it! Could it be that the Web app was down, but the actual mail servers weren't? I know I have the Gmail extension in Chrome Installed (not sure about my coworker), could this be the reason?