On 21-Sep-2007, at 08:50, Michelle Konzack wrote:
You can use ANY COMBINATION of "a-zA-Z0-9.-" and if the MTA allows
the "_".
That's not right, and that sort of thinking is what causes most
websites to screw up on + delimited addresses. the characters
allowed in the username portion of the address are outlined in RFC2822
* All alpha numerics (A-Za-z0-9)
* The characters ! # $ % * / ? | ^ { } ` ~ & ' + - = _
* The character ., non-repeated, as long as it is not first or last
fred#smith(_at_)mydoamin(_dot_)tld
mark+jones(_at_)mydomain(_dot_)tld
#!$%!^{fred}(_at_)mydomain(_dot_)tld
alice(_dot_)williams(_at_)mydoamin(_dot_)tld
are all perfectly legal. Yes, even #!$%!^{fred}(_at_)mydomain(_dot_)tld
jon(_dot_)(_at_)mydoamin(_dot_)tld
fred(_dot_)(_dot_)smith(_at_)mydoamin(_dot_)tld
are not legal
In addition, the local part may be a quoted string.
"my email addresss"@mydomain.tld
for example.
However, the last is not a good idea. However, it is used when email
addresses contain non-ascii characters. It's been a while since
RFC2822 and 2821 were written, so I am not sure how prevelent quoted
strings have become in local-parts of email addresses, I expect much
more prevalent in non-ASCII languages, however.
I know plenty of people who get rather irate if their name is
misspelt 'Jesus' instead of 'Jesús' and would much rather have an
email address of "Jesús"@mydomain.tld than the simpler
jesus(_at_)mydomain(_dot_)tld(_dot_)
--
Three tomatoes are walking down the street- a poppa tomato, a momma
tomato, and a little baby tomato. Baby tomato starts lagging behind.
Poppa tomato gets angry, goes over to the baby tomato, and smooshes
him, "Catch up."
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