On Jul 20, 2017, at 1:23 PM, Michael Caisse via Boost-users wrote:

The irony in sending this message is that the people who need to see it probably wont get it.

We are having trouble with hotmail.com, live.com, msn.com, and outlook.com. Microsoft is filtering the dedicated IP address used by the mail lists and most recently has responded with:

Not qualified for mitigation [ip address] Our investigation has determined that the above IP(s) do not qualify for mitigation. These IP(s) have previously received mitigations from deliverability support, and have failed to maintain patterns within our guidelines, so they are ineligible for additional mitigation at this time.

We have tried to explain multiple times that the IP address has a new owner but we seem to be stuck in almost an auto-response loop. We will continue to try and get service unblocked; however, I would recommend that you dump your MS controlled accounts for Boost mail lists and use another service.

I’ve been having this problem, thanks for the update. Noel Belcourt