Everything worked fine for a long time, until today. Suddenly I am unable to send any emails using my gmail account from both my iOS 7.1 devices. I am getting this message:
Unable to send email
A copy has been placed in your Outbox. The recipient "[MY email address]" was rejected by the server because it does not allow relaying.
One curious thing about it: it shows my email address. No matter what recipient I am entering.
All suggestions I've been able to unearth in the last hour of searching say that outgoing mail settings are incorrect. But both my devices do not allow me to edit or disable primary Gmail server. Everything is grayed out, and I'm not able to save changes when I switch "Enabled" flag to off.
I also tried deleting the account completely, and adding it anew. Still no luck.
PS: Incoming email works just fine. Only outgoing is having issues.