Hello
A noob's question.
For our website we use external mail server ( office 365), our site does not even have a contact form which use PHP mail function, in this case does it require to request smtp port block removal? Is it really needed?
Also if the port is blocked is there any chance for any one to spam with our mail ids or ip?
How to avoid email spoofing in VPS servers with Vestacp as control panel?