Michael Rhodes has a good one for modern versions: /* Created October 12, 2008 Updated December 5, 2010 Since new top-level domains are constantly added, this function assumes the top-level domain is legitimate and validates only the email format. Returns a True value if the parameter is a correctly formatted email address. Created by Michael Rhodes [log in to unmask] Anybody may use this function so long as they keep my contact info in the comments of the function. */ IsEmpty ( text ) or Let ( [ alphanum = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789" ; textEnds = Left ( text; 1 ) & Right ( text; 1 ) ; posDomain = Position ( text; "@"; 1; 1 ) ; domain = If ( posDomain; Right ( text; Length ( text ) - posDomain ) ) ; leftChar = Left ( domain; 1 ) ; posTLD = If ( posDomain; Position ( domain; "."; 1; 1 ) ) ; TLD = If ( posTLD; Right ( domain; Length ( domain ) - posTLD ) ) ] ; Filter ( text; alphanum & "[log in to unmask]" ) = text // There are no invalid characters. and PatternCount ( text; "@" ) = 1 // There is only one @ symbol. and Filter ( textEnds; alphanum) = textEnds // First and last character are alphanumeric. and not Position ( text; ".."; 1; 1 ) and Middle ( text; posDomain - 1; 1 ) <> "." and Filter ( leftChar; alphanum ) = leftChar and not IsEmpty ( TLD ) ) // end let Anyone have any suggestions for version 6? Start Here to Find It Fast!™ -> http://www.US-Webmasters.com/best-start-page/ $8.77 Domain Names -> http://domains.us-webmasters.com/