On Oct 24, 2006, at 7:15 AM, Ron wrote: > Hi all, > > I'm getting error messages from legitimate addresses on > one of my lists, which indicates that they are not getting > their mail when they should. They appear to be yahoo > addresses. Any ideas? I haven't noticed an unusually high number of bounces from my yahoo subscribers lately. I suggest you try sending one or two of those subscribers a message from your Listserv server, but outside of Listserv to see what the bounced headers look like.