Unable to send emails from iPhone

[pk14]

All of a sudden for no reason I cannot send emails from Mail on my iPhone. I get a message saying sender address incorrect.

TPG account settings are all correct

problem persists despite phone reboot

Problem persists whether wifi or 4g

Latest OS upgrade installed

problem persists despite change in password

can send emails using iCloud account on same ohone

 can send emails from TPG post office on web browser

HELP please!

[BasilDV]

Hi @pk14

Welcome to the Community!
 

We were able to locate your account using your community details and learned that you've been in touch with our Tech team.

The case was raised to our Post Masters and further updates will be given by your case manager.

Let us know if you need further assistance.

BasilDV