ahwaznoname Posted July 22, 2023 Share Posted July 22, 2023 Hi, This is my whmcs email settings for smtp service in gmail. A few days ago, I changed my Gmail password and unfortunately, whmcs connection with my Gmail was disconnected.. Since that day, I tried to change it in the email part of the main settings of whmcs, but I keep getting the following error.. Where is the problem? Error : Validation Error: SMTP Error: Could not authenticate. How can I register my new email password in this form? Please pay attention to the attached photo. Thanks 0 Quote Link to comment Share on other sites More sharing options...
Solution leemahoney3 Posted July 22, 2023 Solution Share Posted July 22, 2023 You'll likely need to create an app password for your Gmail account and use that (think you'll need 2FA enabled first) 0 Quote Link to comment Share on other sites More sharing options...
ahwaznoname Posted July 23, 2023 Author Share Posted July 23, 2023 thanks is solved, 0 Quote Link to comment Share on other sites More sharing options...
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