SQL To Compare EMails In MS ACCESS 2000

I have an excel spreadsheet that I imported into a a table called LBCItyProfiles.
I have Another excel spreatsheet that contains our portal users info, I imported it into a table called Export.

I need to see which Emails Do Not Exist in Our Export database but exists in the LBCItyProfiles.

Both Databases have fields called EMail. I need to return the FIrstName, LastName and Emails of users that do not Exist in our Export database. I should not return Emails that are in the portal but not in the LBCityProfiles because maybe thats why my earlier SQL was not working:

SELECT LBCityProfiles.Email
FROM [LBCityProfiles] LEFT JOIN [Export] on [LBCityProfiles].Email = [Export].Email
WHERE [Export].Email IS NULL

This SQL returned Emails that Existed in the Export database but not in LBCityProfiles database, I do not want it to do that. I just need to see how many LBCity ids did not make it to the portal.