Oauth client not found – WP Mail SMTP

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No matter what email I use, even if it is my admin email, I can’t connect it to WP mail SMTP because of an authentication error -Error 401: Invalid Client, to be exact-. Trying to set up emails to be sent to my personal account, but I can’t continue forward until I get this issue resolved. Could anyone provide some help?

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I understand this is very little information, so I’m happy to provide more if necessary

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1 Comment
  1. By the time I was trying to configure SMTP with Gmail I had some trouble in disable some settings about security, which I don’t remember, so back then I’ve searched for and apparently google disabled this feature (I might be wrong but you can google it)

 

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