Spamhaus seems to have added more IPs to their "Open Resolver" list. We had to remove them from our systems for that. We're using proprietary resolvers, yet they seem to dislike them (or the number of the requests they are doing).
Is bl.spamcop.net a valid alternative these days? We haven't been using them for a long while. Any good or bad experience with them?
Is bl.spamcop.net a valid alternative these days? We haven't been using them for a long while. Any good or bad experience with them?