Gmail through Mail.app on university networks

I've encountered errors when attempting to check my gmail imap account via Mail.app on all of my iDevices over several university networks. I get the error: "The connection to the server "-" failed so I cannot send or receive mail and have to log in through Safari. It seems the necessary ports are being blocked. Anyone have suggestions for alternative ports or tricks to make the mail apps on my iPhone, iPad, and MBP work?