At 15:54 9/24/98 -0700, Sherry Beauchamp said: |Is there a reason why addresses with an underscore in the domain name would |suddenly begin bouncing? We just reinstalled 1.8c (we were using an early |build of 1.8d, but our server melted down and had to be replaced ...). "Who" is doing the "bouncing?" It is my understanding that an under_score in a domain name is illegal. Obviously some systems will be more tolerant than others. The hosts involved (and the systems/networks that they depend upon) in the LISTSERV(R) Distribute Backbone could be different from list distribution to list distribution, day-to-day, and month-to-month. /Pete