Below mentioned is the global configuration:
Mail Tab:
Mailer: SMTP Server
Mail From: Enter the e-mail address that will appear on all e-mails sent out by the web site. For admin@yourdomainname.com
From Name: Enter the name that will appear in the From field on all e-mails sent out by the web site. For example The Admin Team; The WebMaster;
SMTP Auth: Yes
SMTP User: Your full email id of the domain hosted on the server, ex: admin@yourdomainname.com
SMTP Pass: Password of your email id.
SMTP Host: Use "mail.YourDomain.com" or "localhost"