Robert Schetterer wrote:
thx mouss for your qualified info, but this appeared just this morning, and i hadnt include their error because they have plenty of servers which give different error codes ( which make no sense at all ) at all they give no usefull information, i checked the log on one of my mailservers ,and only ten mails to yahoo were delivered during last night, so it cant be a traffic limiting, after all i slowed down deliver rate to yahoo since years allready
AFAIK, it only takes a couple of "bad" messages to get on Yahoo's list.
You'll need to follow the link in their reject message in your maillog and contact them if the problem continues.
Terry