[Mimedefang] Apostrophes escaped in "To:" address
David F. Skoll
dfs at roaringpenguin.com
Thu Oct 9 17:00:01 EDT 2003
On Thu, 9 Oct 2003, Keith Dowell wrote:
> Hmm - I always was under the impression that an apostrophe was an invalid
> character. (Yet I just tested it on a linux box and if I add the user with
> quotes I can put it in... but why).
According to RFC 2822, the following addresses are legal:
<%!#$'?@domain.net>
<"@ @ @@@!!!_@$#$#$%*&#$(&@#&^!!+++"@domain.net>
Read it if you don't believe me. :-)
These addresses are not likely to be handled correctly by a lot of
software, but they are technically OK. Many Sendmail installations, for
example, will choke on something with a "%" in it.
Regards,
David.
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