Help and advise in request – Company automated Welcome email – Message Not Delivered – 554 rejected due to spam URL in content

Hi Fellow Master,

I need help and advise on how to overcome issue that I have with my company "Welcome Email" to new user.

​

Company automated Welcome email – Message Not Delivered – 554 rejected due to spam URL in content.

​

We are sending out via gmail service, can anyone help me on this?

​

Thank you