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https://community.sophos.com/products/unified-threat-management/f/mail-protection-smtp-pop3-antispam-and-antivirus/49164/8-201-rdns-missing/179533
I made the change, turned rDNS back on, and am blocking at least one a minute now (update - make that over 5 a minute). And thus far, every entry I've checked is "correctly" being blocked as not having a PTR. I have seen none blocked that do have PTRs, so it looks to be working! Thanks for sharing. Danita
https://forums.cpanel.net/threads/reverse-dns-problem.648521/
Mar 04, 2019 · Hi all, I need some help with Reverse DNS as I have got a problem with it. I have setup rDNS on my hosting provider which I use rdns1.mydomain.com and I have a server hostname which it is gateway1.mydomain.com. I want to use both different name because of …
https://community.sophos.com/products/unified-threat-management/f/mail-protection-smtp-pop3-antispam-and-antivirus/49164/8-201-rdns-missing
Sep 06, 2011 · Pop over to MXToolbox and run their checks and see it labeled as OK on the RDNS check. So I am at a loss as to why it is occurring. For example: seagullscientific.invisionzone.com - this is a support forum for label software, it got a RDNS missing despite it appears to be all correct (unless i'm missing something).
https://forums.businesshelp.comcast.com/t5/Domain-Names-Static-IP/rDNS-Where-is-my-support/td-p/5450
May 27, 2013 · Turn on suggestions. ... Second I tried for like an hour to get support via the phone. The business class number 800-391-3000 is throwing me to the residential queue and all they can do is transfer me back to the business line which puts me right back to them. ... My problem is that the reverse DNS entry for my IP addresses lists my full name ...
https://forums.verizon.com/t5/Fios-Internet/Reverse-DNS/td-p/118977
Nov 19, 2009 · Turn on suggestions. ... I have tried all of the usual suspects for FIOS support and have been transferred around the Verizon phone tree dragon with no luck. Most of the time the person I talk to doesn't know what reverse dns is and just transfers me to get me off their phone. I have spoken to FIOS support, FIOS business support, premium ...
https://community.sophos.com/products/unified-threat-management/f/mail-protection-smtp-pop3-antispam-and-antivirus/49158/rdns-missing-8-201--not-a-bug
Aug 24, 2011 · Yes, it is true that we had some support cases about reverse DNS in the past days. And the support team indeed opened a development ticket for one of these support cases. But in the end it turned out (for every single support case that I am aware of) that the feature was simply working as designed, i.e. all provided examples were legitimate ...
https://serverfault.com/questions/767286/rdns-ptr-record-when-using-cloudflare
I know that Cloudflare, does not support mail trafic and uses dynamic IP's to protect the servers behind it, But I really need to be able to do rDNS lookups on my IP. I have turned of the Caching and protection for these domains as well, so the receiving server can see my IP, but since it is not able to rDNS lookup my IP it is flagged as SPAM.
https://en.wikipedia.org/wiki/Reverse_DNS
If the A record for google-public-dns-b.google.com in turn pointed back to 8.8.4.4 then it would be said to be forward-confirmed. Classless reverse DNS method. Historically, Internet registries and Internet service providers allocated IP addresses in blocks of 256 (for Class C) or larger octet-based blocks for classes B and A.
https://www.rdns.org.nz/our-services/home-support
RDNS recognise that the health and wellbeing of a carer is as important as the person they are caring for. We provide short term care at home (respite) that allows a carer to take a break from their support role. Respite care provides relief to long-term carers and their care recipient by having a qualified Aide take over care duties temporarily.
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