In message <4593E849.5020300@???>, Marc Perkel <marc@???>
writes
>All normal
>servers should attempt the lowest MX first.
sadly, it's not a function of the normality of the client (you don't
mean server when they are sending you email) but of the network :(
http://www.exim.org/mail-archives/exim-users/Week-of-Mon-
20060320/msg00150.html
>So suppose that on the
>lowest MX I had something that recorded the IP address of hosts that
>attempt the lowest MX. This attempt is stored for say 2 hours. Then when
>they retry the higher MX records the system knows that they have already
>attempted the lower one and it is not rejected. But hosts that try the
>higher MX records without having tried the lower one first are deferred.
Please feel free to shoot yourself in the foot, please don't commend it
to others, or speculate about its efficacy without at least checking the
archives for the last time it was debunked :(
- --
richard Richard Clayton
They that can give up essential liberty to obtain a little temporary
safety deserve neither liberty nor safety. Benjamin Franklin
