On 3/26/2014 10:16 PM, Franck Martin wrote:
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.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.
From: http://tools.ietf.org/html/rfc3986#section-3.2.2
