Updated to 3.5.4 and now I have a different error “message”:"SMTP connect() failed. The server certificate has been checked and is ok
Please refer to my post:
And check the detailed error message returned.
Invalid hostentry:
SMTP connect() failed. https://github.com/PHPMailer/PHPMailer/wiki/Troubleshooting
{“code”:2,“file”:"/var/www/vhosts/loveyurt.co.uk/httpdocs/dmxConnectLib/PHPMailer/PHPMailer/PHPMailer.php",“line”:1879,“message”:“SMTP connect() failed. https://github.com/PHPMailer/PHPMailer/wiki/Troubleshooting",“trace”:"#0 /var/www/vhosts/loveyurt.co.uk/httpdocs/dmxConnectLib/PHPMailer/PHPMailer/PHPMailer.php(1601): PHPMailer\PHPMailer\PHPMailer->smtpSend()\n#1 /var/www/vhosts/loveyurt.co.uk/httpdocs/dmxConnectLib/PHPMailer/PHPMailer/PHPMailer.php(1437): PHPMailer\PHPMailer\PHPMailer->postSend()\n#2 /var/www/vhosts/loveyurt.co.uk/httpdocs/dmxConnectLib/modules/mail.php(132): PHPMailer\PHPMailer\PHPMailer->send()\n#3 /var/www/vhosts/loveyurt.co.uk/httpdocs/dmxConnectLib/lib/App.php(193): modules\mail->send()\n#4 /var/www/vhosts/loveyurt.co.uk/httpdocs/dmxConnectLib/lib/App.php(157): lib\App->execSteps()\n#5 /var/www/vhosts/loveyurt.co.uk/httpdocs/dmxConnectLib/lib/App.php(127): lib\App->execSteps()\n#6 /var/www/vhosts/loveyurt.co.uk/httpdocs/dmxConnectLib/lib/App.php(116): lib\App->exec()\n#7 /var/www/vhosts/loveyurt.co.uk/httpdocs/dmxConnectLib/lib/App.php(94): lib\App->exec()\n#8 /var/www/vhosts/loveyurt.co.uk/httpdocs/dmxConnect/api/mail/formmailer.php(8): lib\App->define()\n#9 {main}”}
Looking at your link from the first post i see:
2020-11-16 11:59:35 SERVER -> CLIENT: 535 5.7.8 Error: authentication failed: authentication failure<br>
2020-11-16 11:59:35 SMTP ERROR: Username command failed: 535 5.7.8 Error: authentication failed: authentication failure<br>
SMTP Error: Could not authenticate.<br>
It seems there is an issue with your SMTP auth details.
Teodor, this doesn’t make sense I have verified username and password are correct.
This is a new error, previously it was other issues, JSON and certification.
Thanks for all your help. The problem has now been resolved by the hosting company by some “adjustments “ to the server.

