Re: IPv6 isn't SMTP

[Owen DeLong <owen () delong com>]

On Mar 26, 2014, at 8:12 PM, Robert Drake <rdrake () 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