Thanks Mark Purser for this reminder. However, I'm currently having a challenge sending and receiving email notifications on my site. It was in excellent condition when I installed on a shared server.  But everything stopped after migrating to a VPS. Not even a single successful email has been sent since migrating. I don't know if it's a function notifications or SMTP module.

These have given site users an unfriendly experience as they can't even confirm emails or retrieve login details. I'll appreciate your advise on this so I can put your notification lessons to practice. Thanks