Gfilui

I try to setup an PTR Record for my Domain. I can send mails but some emailservers reject my mail, because I have no PTR Record.

I try it the last days but not working. Can anyone tell me what is wrong?

Best regards

Here is my config.

cat /etc/bind/zones/master/db.domain.tld

$TTL 3h

@ IN SOA ns1.domain.tld. www.domain.tld. (
 1 ;serial
 3h ;nach 3 stunden aktualisieren
 1h ;neuer versuch
 1w ;expire
 1h ) ;negativecaching
;
@ IN NS ns1.domain.tld.
@ IN NS ns2.domain.tld.

@ IN MX 10 mail.domain.tld.
larsmueller.net. IN A 81.169.xxx.xx
ns1 IN A 81.169.xxx.xx
ns2 IN A 81.169.xxx.xx
www IN A 81.169.xxx.xx
mail IN A 81.169.xxx.xx
ftp IN CNAME domain.tld.
cloud IN CNAME domain.tld.
office IN CNAME domain.tld.
ffsync IN CNAME domain.tld.
@ IN TXT "v=spf1 mx ~all"
analytics IN CNAME domain.tld.
_dmarc IN TXT 14400 "v=DMARC1; p=none; rua=mailto:server@domain.tld"
_domainkey IN TXT "o=!;r=server@domain.tld"
2018._domainkey IN TXT "v=DKIM1;k=rsa;t=s;s=email;p=... "

cat /etc/bind/named.conf.local

zone "domain.tld" 
 type master;
 file "/etc/bind/zones/master/db.domain.tld";
;
zone "xx.xxx.169.81.in-addr-arpa" 
 type master;
 notify no;
 file "/etc/bind/db.192";
;

cat /etc/bind/db.192

$TTL 604800
@ IN SOA ns1.domain.tld. mail.domain.tld. (
 1 ; Serial
 604800 ; Refresh
 86400 ; Retry
 2419200 ; Expire
 604800 ) ; Negative Cache TTL
;
@ IN NS ns1.domain.ltd.
xx.Xxx.169.81.in-addr.arpa. IN PTR ns1.domain.tld.
xx. Xxx.169.81.in-addr.arpa. IN PTR domain.tld
xx.xxx.169.81.in-addr.arpa. IN PTR mail.domain.tld.
xx. Xxx.169.81.in-addr.arpa. IN PTR cloud.domain.tld.
Xx. Xxx. 169.81.in-addr.arpa. IN PTR analytics.domain.tld.

dig +short ptr xx.xxx.169.81.in-addr.arpa.
domain.tld

root@mail:/etc/bind/zones/master# dig xx.xxx.169.81.in-addr.arpa. AXFR
;; communications error to 127.0.0.53#53: end of file
;; communications error to 127.0.0.53#53: end of file

Due to the way PTR records work, they have to be set by the entity that is running the nameserver for the subnet your are in.

Unless you have a /24 and have delegated NS records you have to contact your provider.

Based on your IP I'm guessing you have a virtual or physical machine housed by a German service provider. You should look up how to set reverse lookup in their documentation.