After some internet searches I found some people were hacked via this type of email and since I clicked on the mail link my site was offline following the corruption of the WordPress configuration file after an antivirus scan so I advise to first test to see if the plug-in works despite the mail if this is the case ignored the notification or use the standard PayPal plug-in
And you reminded me that it was indeed as a result of the use of the sandbox that I started to receive the emails too
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This reply was modified 3 years, 8 months ago by cidott.