The support team at Office 365 eventually came through for us and its sorted now. Was quite an effort, but got it done!
From: Michael Wise [mailto:michael.w...@microsoft.com] Sent: Tuesday, 3 November 2015 9:19 AM To: Shane Clay <sh...@caznet.com.au>; mailop@mailop.org Subject: RE: Office 365 - 4.7.550 Access Denied If it's Office 365, SmartScreen won't be involved. If these are new IPs ... hydrate them, slowly, is my advice. If you are talking to Office 365 Support, and you're not an Office 365 customer, that's going to be rough. Have you considered getting one of your recipients to ask for an escalation on your behalf? Aloha, Michael. -- Michael J Wise | Microsoft | Spam Analysis | "Your Spam Specimen Has Been Processed." | Got the Junk Mail Reporting Tool<http://www.microsoft.com/en-us/download/details.aspx?id=18275> ? From: mailop [mailto:mailop-boun...@mailop.org] On Behalf Of Shane Clay Sent: Sunday, November 1, 2015 9:16 PM To: mailop@mailop.org<mailto:mailop@mailop.org> Subject: [mailop] FW: Office 365 - 4.7.550 Access Denied Hi All Fairly sure this issue I'm having is Microsoft's SmartScreen kicking in because of the change in our IP. We've contacted Office 365 support but the team there doesn't seem to understand what I'm talking about. They are getting stuck on it being a "end user issue" as opposed to a service provider issue. Not having much luck getting it escalated. Is there anyone from the Microsoft team watching on that might be able to help? Shane From: mailop [mailto:mailop-boun...@mailop.org] On Behalf Of Shane Clay Sent: Monday, 2 November 2015 9:30 AM To: mailop@mailop.org<mailto:mailop@mailop.org> Subject: [mailop] Office 365 - 4.7.550 Access Denied Hi All We've recently changed our DC setup and this morning any email we relay for our clients going to Office 365 is being blocked: 451 4.7.550 Access Denied. Seems like they don't trust the amount of mail we send (although that hasn't changed, just our IP) : Suspicious activity has been detected on the IP in question, and it has been temporarily restricted while it is being further evaluated. Any contacts around that can help me move this along? Shane
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