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Hi guys,
I hope you can help me with this one. I have one live site which used the WP Mail SMTP plugin with no issues. I have it configured to send messages to Gmail via SMTP.
I tried to do the same with another site under the same WordPress multisite installation and it did not work. So, I decided to try to use the Gmail API configuration following this guide: https://wpforms.com/how-to-securely-send-wordpress-emails-using-gmail-smtp/
After I clicked the Allow orange button, I proceeded to send a test email. It did not work. It is taking me to this https://drive.google.com/open?id=1K1c4T58oCvWxIEpp5jwyp4H9GHkhiq1k white screen and nothing else happens.
I tried to select other configuration to go back to SMTP, but all the options for other Email methods disappeared: https://drive.google.com/open?id=1sy-d0dDH30bD56AVo-FVm8kFEth9RdoF
And I cannot change the details og the Gmail option anymore. There is no save, or update, or reset button: https://drive.google.com/open?id=1devcgwCTLff4kCzwrfj3tqbh5ax62A3t
I tried uninstalling the WP Mail SMTP plugin and reinstalling it, but the wrong configuration remains. As I said before, it is just in this site, the other site using the pluggin under the same multisite installation is working fine.
Any help will be really appreciated.