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Re: Eric Sunshine mail delivery failure

From
Eric Sunshine <sunshine@sunshineco.com>
Date
Aug 23, 2015, 18:57 UTC
Message-ID
<CAPig+cSSO3ZTauM1hgUV=govWdmde0ds-fyt7QdHQauiwSmQBw@mail.gmail.com>
In-Reply-To
<CAPig+cS+sDQV0O=pZXL9sw8ww39J=asxrbNm28jG0VSFhXtmtA@mail.gmail.com>
On Sun, Aug 23, 2015 at 2:48 PM, Eric Sunshine <sunshine@sunshineco.com> wrote:
Show 13 quoted lines
> On Sun, Aug 23, 2015 at 2:36 PM, Elia Pinto <gitter.spiros@gmail.com> wrote:
>> Il 23/Ago/2015 20:26, "Eric Sunshine" <sunshine@sunshineco.com> ha scritto:
>>> I did change the CNAME to an A just in case, though who knows how long
>>> it will take for the change to propagate over to web.de's server.
>> Anyone can check Here https://dnschecker.org/#CNAME/Mail.sunshineco.com
>> It would fail with your change
>
> Interesting service; thanks for the pointer. However, since it's just
> querying a random set of DNS servers, it's not necessarily indicative
> of whether the change has actually propagated to the DNS server(s)
> answering web.de's mail server's queries. Local configuration (TTL's,
> etc.) on those servers or anywhere in between, as well as network
> conditions, could impact propagation to an unknown degree.

Also, the propagation time of the A record can be quite different from the point at which the CNAME record finally expires (based upon its TTL, which may differ dramatically from server to server), so the above CNAME query may continue to succeed long after the A record has propagated.

Previous: Eric Sunshine
Message 18 of 18 in “bug: git-archive does not use the zip64 extension for archives with more than 16k entries”
  1. Johannes SchauerAug 11, 2015
  2. René ScharfeAug 12, 2015
  3. Johannes SchauerAug 13, 2015
  4. 1/3 t5004: test ZIP archives with many entriesRené Scharfe, Aug 22, 2015
  5. Eric SunshineAug 23, 2015
  6. René ScharfeAug 23, 2015
  7. Eric Sunshine mail delivery failureRené Scharfe, Aug 23, 2015
  8. Johannes LöthbergAug 23, 2015
  9. Eric SunshineAug 23, 2015
  10. Eric SunshineAug 23, 2015
  11. Junio C HamanoAug 28, 2015
  12. Junio C HamanoAug 28, 2015
  13. Eric SunshineAug 28, 2015
  14. 2/3 archive-zip: use a local variable to store the creator versionRené Scharfe, Aug 22, 2015
  15. 3/3 archive-zip: support more than 65535 entriesRené Scharfe, Aug 22, 2015
  16. Duy NguyenAug 15, 2015
  17. Eric SunshineAug 23, 2015
  18. Eric SunshineAug 23, 2015

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