[AusNOG] Microsoft outlook.com, live.com, Office365 etc IP blocking

paul+ausnog at oxygennetworks.com.au paul+ausnog at oxygennetworks.com.au
Mon Nov 13 11:59:16 EST 2017

Hi Bill, thanks for the reply, yes have done the SNDS thing, haven't really been able to see any issues, but one of the other techs here is doing that one.

I have signed up to the mailops group as well to see if I can get any progress there as suggested.


-----Original Message-----
From: Bill Walker [mailto:bill at wjw.nz] 
Sent: Monday, 13 November 2017 10:33 AM
To: paul+ausnog at oxygennetworks.com.au
Cc: ausnog at lists.ausnog.net
Subject: Re: [AusNOG] Microsoft outlook.com, live.com, Office365 etc IP blocking

Hey Paul,

Have you registered with https://postmaster.live.com/snds/index.aspx ?

Once registered you can request access to all IP's with a source of your ASN and see whats going on from MS's perspective.



On 2017-11-13 11:56, paul+ausnog at oxygennetworks.com.au wrote:
> Hi All, just wondering if anybody can suggest a better approach to 
> this situation for us.
> We had a new IP block allocated a while ago for customers and are 
> beginning to migrate customers onto that block now off an old one, 
> however it seems that Microsoft is not trusting any IP's in that block 
> for some reason, perhaps they have been spammed in the past or 
> something from it.
> The only option seems to be requesting each individual address to be 
> removed from the block, which after getting their automated response 
> which says that they can't do it you then reply and they will do it, 
> but only 1 at a time even though we have asked about the whole block 
> but had no response.
> Can anybody suggest a better approach or is there a better contact we 
> might be able to use then the standard outlook.com delivery support 
> people ?
> Thanks
> Paul
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