> Is there any RFC that says this is an invalid format for email address?
> (don't confuse with POSIX usernames, I'm talking straight email
> addresses)
it's somewhat cryptic, but the following regex will match the RFC 822
(with the TLD's manually added by me, since the rfc isn't that
specific):
((?:
(?:[^<>\(\)\[\]\\.,;:[EMAIL PROTECTED]"]+(?:\.[^<>\(\)\[\]\\.,;:[EMAIL
PROTECTED]"]+)*)
|
(?:"[^"]+")
)
# Required domain part
@
(?:
(?:\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\])
|
(?:[a-z\-0-9]+\.)+(?:biz|com|edu|gov|i?nfo|org|mil|net|[a-z]{2})
))
This even catches some formats that I think I remember courier having
issues with, like <"<=@ @=>"@[127.0.0.1]> (or perhaps there is some
part of the RFC that has been modified for normal email addresses, that
excludes some weird stuff like that)...
-Chris
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