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<div class="moz-cite-prefix">I think this might be it.</div>
<div class="moz-cite-prefix"><br>
</div>
<div class="moz-cite-prefix">You can't set reverse DNS records
yourself, so you will need to contact your service provider and
ask them to change the record for IP 54.39.185.225 from
ip-54-39-185.eu to your mail server dns name.</div>
<div class="moz-cite-prefix"><br>
</div>
<div class="moz-cite-prefix">Alex.<br>
</div>
<div class="moz-cite-prefix"><br>
</div>
<div class="moz-cite-prefix">On 2019-02-21 2:43 p.m., Marc Lijour
wrote:<br>
</div>
<blockquote type="cite"
cite="mid:f6534ab6-0032-a328-98ef-e75a97132d48@gmail.com">
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<p>I thought I had, and I do. OVH is allocating my PTR in a group
of 8 addresses (<b>ip-54-39-185.eu.</b>). May be that's where
the problem lies? I sent a ticket to OVH.<br>
</p>
<p>$ dig -x 54.39.185.225<br>
<br>
; <<>> DiG 9.11.4-3ubuntu5-Ubuntu <<>>
-x 54.39.185.225<br>
;; global options: +cmd<br>
;; Got answer:<br>
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id:
25851<br>
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0,
ADDITIONAL: 1<br>
<br>
;; OPT PSEUDOSECTION:<br>
; EDNS: version: 0, flags:; udp: 65494<br>
;; QUESTION SECTION:<br>
;225.185.39.54.in-addr.arpa. IN PTR<br>
<br>
;; ANSWER SECTION:<br>
225.185.39.54.in-addr.arpa. 5990 IN PTR <b>
ip-54-39-185.eu.</b><br>
<br>
</p>
<p><a class="moz-txt-link-freetext"
href="https://mxtoolbox.com/subnet/?filter=54.39.185.225/29&source=findmonitors&domain=54.39.185.225"
moz-do-not-send="true">https://mxtoolbox.com/subnet/?filter=54.39.185.225/29&source=findmonitors&domain=54.39.185.225</a>
<br>
</p>
<div class="moz-cite-prefix">On 2019-02-21 2:17 p.m., Alex Volkov
wrote:<br>
</div>
<blockquote type="cite"
cite="mid:761d9aea-696a-1553-1996-ab2488b2d9c2@gmail.com">Do you
have reverse DNS records set up -- this is pretty much a
requirement for running any mail server these days. <br>
<br>
This mailing list kept getting blocked by Spamhaus when we used
IPv6 address to send out mail. I have no idea what was wrong
with that, but the minute I turned off IPv6 everything went back
to normal. <br>
<br>
I remember there's an open-source mail config/blacklist checking
website tool, but I don't remember its name. <br>
<br>
Alex. <br>
<br>
On 2019-02-21 1:24 p.m., Marc Lijour via talk wrote: <br>
<blockquote type="cite">Does anyone has insights about dealing
with Spamhaus? <br>
<br>
I'm getting increasingly frustrated by being listed without
explanation. I run a very low bandwidth mail server and a
website for my business. I am running postfix with SPF, DKIM,
and DMARC. I'd like to know what I am missing. <br>
<br>
Spamhaus is very popular which in turn affects Twitter,
LInkedIn, beyond just the mail. <br>
<br>
Is it possible to run one's own mail server this days? <br>
<br>
--- <br>
Talk Mailing List <br>
<a class="moz-txt-link-abbreviated"
href="mailto:talk@gtalug.org" moz-do-not-send="true">talk@gtalug.org</a>
<br>
<a class="moz-txt-link-freetext"
href="https://gtalug.org/mailman/listinfo/talk"
moz-do-not-send="true">https://gtalug.org/mailman/listinfo/talk</a>
<br>
</blockquote>
<br>
<br>
</blockquote>
</blockquote>
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