In article <5333970a.6070...@direcpath.com> you write: > >On 3/26/2014 10:16 PM, Franck Martin wrote: >> >> and user@2001:db8::1.25 with user@192.0.2.1:25. Who had the good idea to use >> : for IPv6 addresses while this is the >separator for the port in IPv4? A few MTA are confused by it. >At the network level the IPv6 address is just a big number. No >confusion there. At the plaintext level the naked IPv6 address should >be wrapped in square brackets. > >From: >http://tools.ietf.org/html/rfc3986#section-3.2.2
It's messier than that. See RFC 5321 section 4.1.3. I have no idea whether anyone has actually implemented IPv6 address literals and if so, how closely they followed the somewhat peculiar spec. R's, John
