I have a problem while integrating v13.1 with and exteral exchange server. I doesn't send emails and it doesn't give any error.
I wrote a php script and successfully sent an email. My configuration was like below.
Host = 'smtp.host.com;
Port = 587;
SMTPSecure = 'tls';
SMTPAuth = true;
Username = "firstname.lastname@example.org";
Password = "password";
I think it is about tls. Is there any option to enable tls?
Do you have any other suggestion for that?