At 11:07 10/01/2002 Tuesday, Bill Salmon wrote:
 >WE ahve recently moved our list from Brown University to Netspace.
 >
 >After the move, some of our hotmail users experienced problems, most of
 >which were cleared up by telling hotmail the messages were not spam.
 >
 >One digest subscriber has tried the above, and still cannot get digest.
 >
 >If he deletes his account, and resubscribes, he gets one digest, then no
 >more.
 >
 >Anyone know a solution?

Yes, have your customer switch from HOTMAIL.  If you need any more
reasons, check the LSTOWN-L archives (URL may break when wrapped):

http://peach.ease.lsoft.com/scripts/wa.exe?REPORT=&n=&m=&q=hotmail&0=S&s=&f=&a=2002&b=&I=-3&d=no+match%3Bmatch%3Bmatches&K=1&L=100&J=on&X=17173165820B68E46C&Y=Pete-Weiss%40psu.edu&z=4&1=LSTOWN-L&9=A