Ok.
If the senders email address is netvigator.com then your SMTP settings should be ok.
However, if you're sending from a non-netvigator.com email address (for example mine is [email protected] when I send emails) then you need to use the following:
Outgoing SMTP Server: smtp.netvigator.com
Enable SMTP Authentication
Set your SMTP userid and password to whatever your broadband login is ... in my case it is [email protected] and the associated password with that account.