On Sat, 13 Nov 2004 19:07:46 +0100, Eric Thomas said:

> It is perfectly acceptable to have multiple @ signs in an address line. Not
> only is the @ sign allowed in a person's name (frequently used for phone
> numbers or extensions), it is also allowed in the local part of an e-mail
> address.

Fortunately for everybody's sanity, rfc822, section 3.3, explicitly
includes '@' in "specials", so there should only be one *unquoted* @ in
an address.

Not that I haven't seen my share of addresses that have 2 or even 3 unquoted @
in them. :)