On Mar 26, 2014, at 8:12 PM, Robert Drake <rdr...@direcpath.com> wrote:
> > 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 > Two errors, actually… As an RFC-821 address, it should be user@[IP]:port in both cases (user@[192.0.2.1]:25 and user@[2001:db8::1]:25). Owen
