As of yesterday my mail app stop receiving emails. After trying everything u see the sun. A final google search I turned off my WiFi and all my mail came through. I have Frontier and my WiFi is somehow blocking incoming Mail.
iPhone 12
I suggest that you contact Frontier email provider and ask them, after checking their outgoing/incoming (SMTP/iMAP/POP3) parameters.
Regards
Giulio
The answer for me was to sign out and sign in to my email account via the Mail app settings.
My Google pay is not working PhonePe also not working
Mail App not working
