Could not send email to office 365
joesox at gmail.com
Wed May 15 01:19:31 UTC 2013
My business mysteriously stabilized after speaking with the Escalation
Manager of North America, last week. Next, health status statement said it
was a false-positive on May 9th. Yesterday, speaking with the tech to
close my case, he had a hunch engineering fixed something but he made it
clear that he was only guessing. I never was able to get a real cause of
this issue for the company I work for or the reported other companies in
North America reporting the issue. Troubleshooting never led me down an
IPv6 path but others might have, or maybe that was the root cause on the
On Tue, May 14, 2013 at 11:02 AM, Jason Sherron <jason.sherron at microsoft.com
> I'm an engineer on the Microsoft Office365 Exchange Online ("
> outlook.office365.com") network team. I'm gathering forensics specific to
> IPv6 reports -- are people still experiencing IPv6-related issues? I am
> interested solely in failures that are IPv6 connection issues to "
> If you have a clear repro of an IPv6 connection failure, please message me
> off-list with at least a traceroute. (Please don't deluge me with
> non-IPv6-related issues -- I'm a network guy working on this one report.)
> Jason (dot) Sherron [at] Microsoft (dot) com
> -----Original Message-----
> From: JoeSox [mailto:joesox at gmail.com]
> Sent: Wednesday, May 8, 2013 4:35 PM
> To: nanog at nanog.org
> Subject: Re: Could not send email to office 365
> Just an update if list members are still experiencing this issue. I spoke
> on the phone with Escalation Manager for Microsoft North America and they
> had meetings today and their Engineering team is putting a game plan
> together to roll out a fix for the Outlook connectivity issues. They were
> debating to roll-out to the group of effected customers or one-by-one. From
> the data I provided to them it looks like something to do with their NSPI
> RPC endpoint environment. They told me I should receive a call tomorrow but
> call them Friday if I do not receive a call. Hopefully, everyone else
> experiencing this issue is being taken care of as this is the main concern
> with Cloud services is the lack of response times on major issues.
> Thanks, Joe
> On Thu, May 2, 2013 at 10:16 AM, JoeSox <joesox at gmail.com> wrote:
> > Our Technical Support is reporting a big jump in Outlook connectivity
> > issues about 5-10 minutes ago.
> > Our resolvers are testing fine.
> > --
> > Thanks, Joe
> > On Thu, May 2, 2013 at 4:53 AM, Joe Abley <jabley at hopcount.ca> wrote:
> >> On 2013-05-02, at 02:42, Cathy Almond <cathya at isc.org> wrote:
> >> > This may be a red herring, but I've heard of some dropping of DNS
> >> > queries for the names within outlook.com domains where the queries
> >> > are all coming from source port 53 (i.e. your recursive server
> >> > doesn't use query source port randomization
> >> ... or there's a NAT or some other box in front of the recursive
> >> server which re-writes the source port...
> >> > ). Might be worth checking what the recursive server you're using
> >> > is doing?
> >> >
> >> > See https://www.dns-oarc.net/oarc/services/porttest
> >> Joe
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