T-SQL (SS2K8) :: Stripping First And Last Name From Email Address

I'm trying to strip out the First & Last Name from an Email Address. The email address is formatted as "FirstName.LastName@emailaddress.com" but sometimes a middle initial is used (ex: "First.M.Last@emailaddress.com").

I can locate the '@' sign and the first '.' period(from left to right) but need to find the first '.' from the left of the '@' sign.

I'm doing this in a view.

Here's some sample data and what I've tried:

CREATE TABLE dbo.Table1
(EmailAddr VARCHAR(255))
INSERT INTO dbo.Table1 (EmailAddr)
SELECT 'Andy.Smith@gmaddr.com'
UNION ALL
SELECT 'Betty.Lee-Jones@gmaddr.com'

[Code] .....