> you can try a lookup of these IPs in multiple RBLs, and lookup the > "surrounding subnet" (/24 for example) on: > http://www.senderbase.org/ > > you may want to keep the old servers for some time. > (from experience, I've found MS to "cache" reputation for a long long > time. That once forced me to keep one server just for hotmail! even > registering the new IPs at their site, adding SPF, ... didn't help).
I'd love to keep one around but I will only have 30 days for it. The other problem is I won't get the IP's until tonight. If they are bad/listed I'll have to do something alternative in the short term (like a vm over at slice host or something).