iPhone 15 Pro Max cannot send email

Adding an email account actually adds 2 separate email servers, one for incoming and a different one for outgoing. It sounds like the outgoing (SMTP) server is not set up correctly. There are 2 ways to fix it:

1. Go to Settings/Mail/Accounts, tap on the account, then Outgoing mail server, and enter the correct account name and password.
2. The easier way, go to Settings/Mail/Accounts, tap on the account, the delete it. Restart your phone, then go to the same setting and add it back, being careful to have a username and password for both the incoming and outgoing server (even though it says “optional”).

mine says: The sender name is invalid"