Seems like mails are coming through now. Our queues have been declining since 
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/ Emil Stahl Pedersen
Systems Engineer
Office: +45 70 40 00 00

[email protected]<mailto:[email protected]>

Operations Linux
team.blue Denmark A/S
H?jvangen 4
8660 Skanderborg
Denmark
CVR: 29412006

[cid:team.blue-color-rgb-small-mail-signature_78509216-de0a-4033-a847-aa8f4610dc1b.png]


From: mailop <[email protected]> on behalf of Ken O'Driscoll via mailop 
<[email protected]>
Date: Wednesday, 6 July 2022 at 12.57
To: Dan Malm <[email protected]>
Cc: [email protected] <[email protected]>
Subject: Re: [mailop] Delivery and DNS issues for Microsoft / m365
They appear to know about it - there's an open incident (EX397744) on the 
service health dashboard.

Ken.

> -----Original Message-----
> From: mailop <[email protected]> On Behalf Of Dan Malm via
> mailop
> Sent: Wednesday 6 July 2022 10:42
> To: [email protected]
> Subject: [mailop] Delivery and DNS issues for Microsoft / m365
>
> Hi,
>
> We're seeing a lot of DNS errors for *.mail.protection.outlook.com at
> the moment. NS lookup for mail.protection.outlook.com resolves to two
> hostnames that in turn resolve to the same IP. What IP they both
> resolves to varies over time, and one or more of those IPs doesn't
> respond at all on port 53, so whenever the non working IP is cached we
> can't lookup MX records for m365 customers for a while. The DNS servers
> we can reach also don't support edns or qname minimization...
>
> And when DNS doesn't fail we have a lot of deliveries respond with:
>
> Temporary server error. Please try again later ATTR2 [GV0CHE01FT017.eop-
> che01.prod.protection.outlook.com
>
> I'm assuming we're not the only ones seeing these problems at the
> moment?
>
> https://portal.office.com/servicestatus lists issues with outlook.com
> but the description there doesn't seem to fit what I'm seeing.
>
> --
> BR/Mvh. Dan Malm, Systems Engineer, One.com
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