IPv6 isn't SMTP

Thu Mar 27 14:17:35 UTC 2014

>> mailbox@[IPv6:2001:12:34:56::78:ab:cd]
>
> You aren't allowed to use :: to abbreviate one zero hexadectet according
> to RFC 5952.
>
> http://www.rfc-editor.org/errata_search.php?eid=2467

Oh, look at that.  I wonder how many people realized that it made an 
incompatible change to RFC 4291 four years ago.  I certainly didn't.  I 
wonder what problem they thought they were solving.

Regards,
John Levine, johnl at iecc.com, Primary Perpetrator of "The Internet for Dummies",
Please consider the environment before reading this e-mail. http://jl.ly