Could not connect to SMTP host. port 587

Job ID: 31425709

Budget: $10 – $30 USD

Hello, We have a server @ Alibaba Cloud and we are trying to configure whmcs external email server. However we are unable to connect to external server as it gives us below error message.

Could not connect to SMTP host. port 587

If you guys can fix this pls let me know.
Related categories: System Admin Linux WHMCS Ubuntu SMTP