18 Sep
2013
18 Sep
'13
1:47 p.m.
Our mail server IP address is 74.112.99.25. Is it possible they are blocking us based on old information from the previous IP address block owner?
Quite likely, yes.
https://www.arin.net/resources/whowas/ Found it to be of use for this type of question. Registration required. Geolocation information often needs updating for these "recycled" ranges. /JF