I assume you edited the header some to protect your privacy.
right off the bat the ip is from Pakistan Telecommuication company limited.
subject looks fishy unless you edited the language files.
the default subject I get is:
A new user has registered at "community name"
also the from should be
Where community name is what you have entered in the ubb control panel.
Or your host has you setup completely different than most php servers.
Why don't you just register yourself with a test name and different email address than you use for yourself. Then you know you have a legit header and compare it to that one.
