On Monday 03 January 2005 20:55, Peter Arremann wrote:
I was trying to send a message to the list... Anyone know why I
would be getting an 451 like that? I've sent several messages to
the list so far and this is the first time I'm getting this
problem...
Some weeks ago we noticed that at least some of the RH list servers
implemented greylisting. You evidently contacted one of the
servers running it.
http://hcpnet.free.fr/milter-greylist/
Regards, Mike Klinke