Maps has been doing this for years. There's nothing new here. We subscribed to MAPS probably 6 or 7 years ago, and we got listed ourselves and couldn't get any help even though we were a paying customer.
The database is updated every 30 minutes 24/7 and delisting takes no more than an hour if there is a problem, but there seldom are. No netblock listing either. Yeah, I work for the company (shameless plug) but this system was designed by real MAPS victims. There is a free public DNS version too.
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Maps has been doing this for years. There's nothing new here. We subscribed to MAPS probably 6 or 7 years ago, and we got listed ourselves and couldn't get any help even though we were a paying customer.
Try this one: http://www.mxrate.com/
The database is updated every 30 minutes 24/7 and delisting takes no more than an hour if there is a problem, but there seldom are. No netblock listing either. Yeah, I work for the company (shameless plug) but this system was designed by real MAPS victims. There is a free public DNS version too.