On Thu, 29 Jun 2006, Robert Millan wrote:
[...]
> Besides, in the long term, this should get better. After all, 551 is
> a standard response defined in RFC 2821. I don't see why any MTA
> wouldn't want to support it in the sender side.
Well, I wouldn't want to deal with "A redirects to B, B redirects to C, C
redirects to D, ..."