What's a valid email address?

[gerardg]

What characters can it contain? This is a regular expression (eregi) from PHPClasses - emails can really have -!#\$%&'*/=?^_`{|}~ and spaces in them?

"^{([-!#\$%&'*+./0-9=?A-Z_a-z{|}~ ])+@([-!#\$%&'*+/0-9=?A-Z^_a-z{|}~} ]+\.)+[a-zA-Z]{2,4}\$"

[maxholman]

Email addresses can contain all sorts of different characters...

For example: The following string, in its entirity, is a competely valid email address:

Some Person <[e-mail]>

[alcapone]

CSN, check out rfc 2486, they've got it covered for ya (valid symbols).

cheers,
AlCapone

[gerardg]

Thanks!

Good lord this is valid:

fred=?#$&*+-/^[e-mail]

say Fred, what's your email address...

[Anon]

Yes... but the one I used was valid too and the greeting card did not take it!!!