While looking at some mail-headers, I was wondering about the IPv6
literals used with the EHLO/HELO in exim. I noticed that some clients
(like Thunderbird) but also other MTA's use "IPv6:" in front of the
address, like
[IPv6:2001:610:508:...]
(but I suppose only clients actually use it in the HELO).
If this was provided as:
[2001:610:508:...]
the address would have been "recognised" by exim and the helo= string
omitted.
Isn't it nicer if literals with IPv6: in front where accepted in the
same way?
Paul
P.S. Look at my Received-header if you want another example ;-)
And this is just a minor and mostly cosmetic thing of course.