You should have a look at this article: https://en.wikipedia.org/wiki/Forward-confirmed_reverse_DNS
On 12/13/2017 10:02 PM, Ryan Prihoda wrote: > William, > > Yes our PTR is set correctly, but our domain does resolve to a different > IP. Why does only Earthlink care about that ? Seems silly. > > Sincerely, > > *Ryan Prihod**a > *Systems Administrator > > > *dyna**Connections****Corp. > *1101 S. Capital of TX Hwy. > Bldg. H, Suite 130 > Austin, Texas 78746 > rprih...@dynaconnections.com <mailto:rprih...@dynaconnections.com> > www.dynaconnections.com <http://www.dynaconnections.com/> > > > On 12/13/2017 02:47 PM, W Kern wrote: >> >> its misleading. >> >> We saw that a few weeks ago. >> >> Make sure the FQDN you reverse zone file provides, also resolves back >> to the same IP. >> >> We were just as confused. The PTR was there, but because of a typo it >> didn't resolve. >> >> Fixed that and Earthlink was happy. >> >> Sincerely, >> >> William Kern >> >> Pixelgate Networks. >> >> >> On 12/13/2017 12:21 PM, Ryan Prihoda wrote: >>> >>> Hello all, >>> >>> We are getting errors from one of our servers. >>> >>> 550 ERROR: No or mismatched reverse DNS (PTR) entries >>> >>> When, in fact there is only one record for that IP. Can anyone from >>> Earthlink look into this for us ? >>> >>> Sincerely, >>> >>> *Ryan Prihod**a >>> *Systems Administrator >>> >>> >>> *dyna**Connections****Corp. >>> *1101 S. Capital of TX Hwy. >>> Bldg. H, Suite 130 >>> Austin, Texas 78746 >>> rprih...@dynaconnections.com <mailto:rprih...@dynaconnections.com> >>> www.dynaconnections.com <http://www.dynaconnections.com/> >>> >>> >>> >>> _______________________________________________ >>> mailop mailing list >>> mailop@mailop.org >>> https://chilli.nosignal.org/cgi-bin/mailman/listinfo/mailop >> >> >> >> _______________________________________________ >> mailop mailing list >> mailop@mailop.org >> https://chilli.nosignal.org/cgi-bin/mailman/listinfo/mailop > > > > _______________________________________________ > mailop mailing list > mailop@mailop.org > https://chilli.nosignal.org/cgi-bin/mailman/listinfo/mailop >
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