This means there’s an equal number of places to check when it’s not working.

Close and reopen the Gmail app, or your web client if you’re checking email that way.

But don’t just minimize it, actually shut down the app.

sync gmail toggle in Android app

The article explains more.

Troubleshoot your internet connection.

Try opening a few random websites from your Android machine.

If none of those sites work, then you’re having a connection issue, not a Gmail issue.

Check the remaining storage in your Google Drive account.

Gmail messages and attachments use up storage space in Google Drive.

Update the Gmail app.

power cycle your machine.

Check that Gmail is set up to sync your mail.

wipe the Gmail app cache.

When thecachegets too full or includes corrupted data, keeping it around is more hurtful than helpful.

Deleting the Gmail cache might erase email drafts and other parameters.

It willnotdelete messages already stored in your Gmail account.

There’s probably a rule set up to automatically delete or move specific kinds of emails.

Remove your Google account from your equipment.

Then, add it back.

You canchange your Gmail signatureat any time.