I'm using Gmail, I've been using for over a year with no issues and cameras has been thru several firmware updates. Funny thing is my 932L does the same thing.
I have done the following and the feature is currently working again on the 933L...
Re-Configured Motion Detection Window
Rebooted Camera
Sent Test E-mail
I activate when I want active and then send a test mail which is received, the camera now detects and sends emails and has been working for several cycles now, not sure what the solution was, going to try the 932L now and if I have issues with it, post a thread in the 932L area. Really a strange problem.
Thanks
ISeeU2 Lakeland