I can’t send anything out through any of my Gmail accounts, since yesterday, 04/26/2021…the day I updated to 89.0b1 (64-bit). I can send just fine, using my own server’s smtp, if I switch to one of my own account usernames in order to send.
I’ve checked the setup info on Google, and it hasn’t changed.
I’ve just seen that someone using 89.0b1 (64-bit) on macOS Big Sur is having a similar problem.
I’m RECEIVING my Gmails perfectly…it’s just the SENDING that’s hanging up.