Re: MTS transparency and anonymity

>> among them are: anonymous@[0.0.0.0], anonymous@[127.0.0.1], 
>> anonymous@[127.255.255.255], anonymous@[::0], and anonymous@[::1].
>
> (Don't these have mostly the same DNS problems as [email protected]?)

they shouldn't.  any MTA that tries to do a DNS lookup of a domain 
literal is seriously broken.

(and at least at one time there was a popular MTA that would look up 
the PTR record for the IP address, get a domain name, and try to 
substitute that domain name - which is completely ridiculous.  the 
whole point of using a domain literal is to connect directly to the 
SMTP server at that address.)