after upgrading to 5.10.0 sending mails stopped working.
I tried troubleshooting but without success.
Our setup is very simple, smtp relay, no encryption, no authentication, things worked until the upgrade.
The test email debug says that:
I can reach the server, dns is ok, telneting to port 25 on that smtp server also works, any ideas?
Code: Select all
Mailer said: [05-23-2023 12:27:40] SMTP connect() failed. https://github.com/PHPMailer/PHPMailer/wiki/TroubleshootingSMTP server error: QUIT command failed (method=smtp;host=smtp.serveraddress.com;port=25;security=none), Referer: admin/testemail.php An error occurred sending a test email!