> -----Original Message----- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
[snip] > would it be difficult to detect > which format the > host was specified? > > If there are multiple colons, it would be an IPv6 numeric > address. If > there is only one, it is hostname:port or IPv4:port. IIRC, IPv6 uses single colons unless there is an un-ambiguous string of all zero which can be replaced by 2 colons (but only once - otherwise it would be ambiguous) It may be possible to easily detect and IPv6 address vs. a hostname:port or even IPv4:port, but the use of a single vs. double colon wouldn't be the method. Maybe the use of the method in RFC2372 - similar to what sendmail uses. (http://www.ietf.org/rfc/rfc2732.txt) Literal IPv4 or IPv6 addresses must be enclosed in square brackets [], otherwise they are presumed to be names. _______________________________________________ Visit http://www.mimedefang.org and http://www.canit.ca MIMEDefang mailing list [EMAIL PROTECTED] http://lists.roaringpenguin.com/mailman/listinfo/mimedefang
