nanog mail not getting here

[Lou Katz <lou () metron com>]

Due to the CRII load, apparently I cannot properly do a lookup on
trapdoor.merit.edu, so nanog mail is bouncing with a temporary error
451 "Sender domain must resolve".

If anyone knows how to jigger my sendmail to let this through without
opening the floodgates, please contact me offlist.

Thanks.

-=[Lou Katz]=-