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<p class="MsoNormal"><span style="font-size:12.0pt;mso-fareast-language:EN-US">Have you asked them to setup PTR records?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;mso-fareast-language:EN-US">We usually do it for our clients, so I�ve no idea how others handle it<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:-webkit-standard;color:black">--
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:-webkit-standard;color:black">Mr Michele Neylon<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:-webkit-standard;color:black">Blacknight Solutions<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:-webkit-standard;color:black">Hosting, Colocation & Domains<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:-webkit-standard;color:black"><a href="https://www.blacknight.com/"><span style="color:#0563C1">https://www.blacknight.com/</span></a><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:-webkit-standard;color:black"><a href="https://blacknight.blog/"><span style="color:#0563C1">https://blacknight.blog/</span></a><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:-webkit-standard;color:black">Intl. +353 (0) 59 9183072<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:-webkit-standard;color:black">Direct Dial: +353 (0)59 9183090<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:-webkit-standard;color:black">Personal blog: <a href="https://michele.blog/"><span style="color:#0563C1">https://michele.blog/</span></a><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:-webkit-standard;color:black">Some thoughts: <a href="https://ceo.hosting/"><span style="color:#0563C1">https://ceo.hosting/</span></a><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:-webkit-standard;color:black">-------------------------------<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:-webkit-standard;color:black">Blacknight Internet Solutions Ltd, Unit 12A,Barrowside Business Park,Sleaty Road,Graiguecullen,Carlow,R93 X265,Ireland Company No.: 370845<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:-webkit-standard;color:black"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:-webkit-standard;color:black">I have sent this email at a time that is convenient for me. I do not expect you to respond to it outside of your usual working hours.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
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<b><span style="font-size:12.0pt;color:black">From: </span></b><span style="font-size:12.0pt;color:black">anti-abuse-wg <anti-abuse-wg-bounces@ripe.net> on behalf of Alessandro Vesely <vesely@tana.it><br>
<b>Date: </b>Friday, 5 April 2024 at 13:01<br>
<b>To: </b>anti-abuse-wg <anti-abuse-wg@ripe.net><br>
<b>Subject: </b>[anti-abuse-wg] Reverse DNS delegations<o:p></o:p></span></p>
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<p class="MsoNormal" style="margin-left:36.0pt"><span style="font-size:11.0pt">[EXTERNAL EMAIL] Please use caution when opening attachments from unrecognised sources.<br>
<br>
Hi all,<br>
<br>
what's the policy for reverse delegation? My provider assigned me a 2a02:29e1:500:6c00::/56. Great. However they didn't delegate reverse DNS. Indeed, their own 2a02:29e1::/32 has no delegations:<br>
<br>
; <<>> DiG 9.18.24-1-Debian <<>> 1.e.9.2.2.0.a.2.ip6.arpa ns<br>
;; global options: +cmd<br>
;; Got answer:<br>
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 19800<br>
;; flags: qr rd ra ad; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 1<br>
<br>
;; OPT PSEUDOSECTION:<br>
; EDNS: version: 0, flags:; udp: 1232<br>
; COOKIE: cad8ae482b0e559c01000000660fe49763aa815e05fda159 (good)<br>
;; QUESTION SECTION:<br>
;1.e.9.2.2.0.a.2.ip6.arpa. IN NS<br>
<br>
;; AUTHORITY SECTION:<br>
0.a.2.ip6.arpa. 3600 IN SOA pri.authdns.ripe.net. dns.ripe.net. 1712314758 3600 600 864000 3600<br>
<br>
<br>
Now there are mail servers which reject mail if they don't find a matching PTR:<br>
<br>
<<< 554 resimta-c2p-559421.sys.comcast.net resimta-c2p-559421.sys.comcast.net 2a02:29e1:500:6c00::4 Comcast requires that all mail servers must have a PTR record with a valid Reverse DNS entry. Currently your mail server does not fill that requirement. For
more information, refer to: <a href="https://postmaster.comcast.net/smtp-error-codes.php#554">
https://postmaster.comcast.net/smtp-error-codes.php#554</a><br>
<br>
<br>
Why isn't it possible to gain a delegation by proving number assignment?<br>
<br>
<br>
Best<br>
Ale<br>
--<br>
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--<br>
<br>
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