🚀 go-pugleaf

In article <4330@dftsrv.gsfc.nasa.gov> dweissman@amarna.gsfc.nasa.gov (WiseGuy) writes:
   ...The MX for [some]NET uses [someone]'s POSTMAN gateway at
   [somewhere].  I know the chart you refer to but I'm not sure how
   [someone] feels about mass use of the [somewhere] gateway.

If [someone] agrees to MX for someone else, they're agreeing to all
possible implications of that action.  Once an MX record is broadcast,
it's the way that *everyone* is supposed to get to that domain.  If
[some]NET didn't agree up front to limit the load offered to their MX
(how?), then the MX can either (a) ask politely that they reduce the
traffic or (b) tell [some]NET to go find another MX.

   Besides the [somewhere] gateway can sometimes take hours or days to
   deliver (if at all).

If [some]NET's customers complain loudly enough, then [some]NET's
management will go find another MX.  There are folks (e.g. UUNET, PSI,
SURFnet) who do it for money, and in exchange accept responsibility to
provide a pre-arranged level of service, which can be contractually
specified to include traffic volume and passthrough delay time.