It has come up on this list from time to time the blacklisting versus
whitelisting issue. I haven't paid much attention because the lists I
run are small. However, I've begun to see the following message.
----- The following addresses had permanent fatal errors -----
(reason: 550 Found your system (64.xx.xxx.xx) in open relay service
(expanded from: include:/usr/local/majordomo/lists/listname)
Does this mean my list (or IP address the list is coming from) has been
put on some sort of black list?
If so, how do I go about fixing this? It only affects one list member so
far. We do have people with Yahoo! and Hotmail addresses, but none of
them have been affected.
I'd like to deal with this before it becomes a general problem.