Cant receive email from my iPhone mail app

Start your troubleshooting here, If you can't receive email on your iPhone, iPad, or iPod touch - Apple Support

arely34 Said:

"Cant receive email from my iPhone mail app: Cant receive my mails"-------

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Troubleshooting iPhone eMails:

A. Go here:

• If you can't Receive eMail on your iPhone, iPad, or iPod touch - Apple Support
• If you can’t Send eMail on your iPhone, iPad, or iPod touch - Apple Support

B. Add the eMail Account Back.

See if it all syncs when you add the eMail Account back. If it is on a Mail server the it should pop up. It may take some time, if you have thousands to download.

C. Use a New App Password:

Do you use an App Password? If so, try a new App Password. Sometimes, changes (i.e. updates) are made to the device, and then mail server syncing becomes an issue (which is what a new App Password it intended to fix). For example, you'd go here for gmail: Sign in with App Passwords - Google Account Help - Google