excel email validation formula

Question

I have a column where people enter email address manually. I want to validate the email address using this formula:

=AND(FIND(“@”,A2),FIND(“.”,A2),ISERROR(FI         


        

Answer 1

I bumped into an issue of firstname.lastname@domain@topdomain for which I made an amendment that checks the correct order of the @ and the . with an implicit Like without VBA.

=AND(NOT(ISERROR(VLOOKUP("*@*.*",A2,1,FALSE))),ISERROR(FIND(" ",A2)))

EDIT
"*?@?*.??*" seems to be even more descriptive as long as top-level domains are at least two characters long (as of this post they are).