I just noticed that the email I got came from netsol1@INTEGRAM.ORG, which whois's to:

INTEGRAM (INTEGRAM4-DOM)
2730 Prosperity Ave.
FAIRFAX, VA 22031
US

They don't seem to have much in common with NSI. their web address seems to be an empty directory (has the apache feel to it though).

So, what gives with this?