installed VB4 on a VSP, but registration email won't send

[radiofranky]

Hi,
I have just installed VB4.2.1 in my ubuntu server(VPS) and I'm new to it. My problem is that the server won't send out registration confirmation email when a new user registers.
I don't have a SMTP server installed, and I was wondering do I need to install one in order for this to work? What mail server do you recommend to install? Thanks very much

[snakes1100]

You need to check the email error log & find out why they arent sending out.

You do not need smtp.