Dear all,
After successful upgrading to 1.7.7.1 now mail alerts not working, new order , test email all not working
I tried SMTP also not working following error is showing
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Error: Please check your configuration
Failed to authenticate on SMTP server with username "[email protected]" using 2 possible authenticators. Authenticator LOGIN returned Expected response code 235 but got code "535", with message "535 Incorrect authentication data ". Authenticator PLAIN returned Expected response code 235 but got code "535", with message "535 Incorrect authentication data ".
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php version 7.3
any help ?