Need help with DNS and mail server settings

[UFHH01]

Hi egomaniacXFR,

it's totally UP TO YOU, which name you choose for your server. You can choose HONOLULU, SCHOKOMOCKO, WHATEVERYOULIKE, or even "doksana" as your desired name.

 

[egomaniacXFR]

I've made a screenshot of the file's content and changed the hostname file so now it contains "doksana.doksana.net".

Re. DMARC: I've phoned with my ISP but they couldn't help me via telephone. They'll mail me instead. I'm still waiting for it.

 

[UFHH01]

Hi egomaniacXFR,

please remove line 3 from your "/etc/hosts" -file to avoid issues/faulires/problems.

Please keep in mind to change now as well "/etc/hostname" to "doksana.doksana.net", to meet your changes from "/etc/hosts".

Did you manually change something at "/etc/postfix/*" ? Because connecting to your mail-server still replies with

[000.160] Connected to server
[000.524] <-- 220 localhost.localdomain ESMTP Postfix (Ubuntu)
[000.524] We are allowed to connect
[000.525] --> EHLO checktls.com
[000.684] <-- 250-localhost.localdomain
...

... which will still lead to errors/failures/problems.


As mentioned before, you should change the reverse DNS entry of your IP ( you previously changed it to "doksana.net", which now should be "doksana.doksana.net" ) over your server hostings control panel ( 1&1 ).

 

[egomaniacXFR]

I removed that line in /etc/hosts. The hostname file is correct too.

No, I didn't changed something at postfix but I forgot to tell that Plesk says my hostname is still "localhost.localdomain" (see picture).

In /etc/postfix/main.cf I've found the entries:

smtpd_banner = $myhostname ESMTP $mail_name (Ubuntu)
myhostname = localhost.localdomain
mydestination = localhost, localhost.localdomain, , localhost

Do I have to change the entries in that file or somewhere else?

Edit: Fixed the Reverse DNS entry.

 

[UFHH01]

Hi egomaniacXFR,

myhostname = localhost.localdomain

Please change this to:

myhostname = doksana.doksana.net

​

mydestination = localhost, localhost.localdomain, , localhost

Please change this to:

mydestination = localhost.doksana.net, localhost, localhost.localdomain​

 

[egomaniacXFR]

Ok, changed them. Plesk still shows localhost.localdomain as the hostname. Is that a problem?

SMTP Reverse DNS Mismatch OK - 82.223.18.195 resolves to doksana.doksana.net
SMTP Valid Hostname OK - Reverse DNS is a valid Hostname
SMTP Banner Check OK - Reverse DNS matches SMTP Banner
SMTP TLS OK - Supports TLS.
SMTP Connection Time 1.109 seconds - Good on Connection time
SMTP Open Relay OK - Not an open relay.
SMTP Transaction Time 3.500 seconds - Good on Transaction Time

Still no answer from the ISP. I'll give an update as soon as I receive a mail.

 

[UFHH01]

Hi egomaniacXFR,

please go to:

Home > Tools & Settings > Server Settings​

... and change there as well the configuration to "doksana.doksana.net", so that Plesk will show your correct server configuration.

 

[UFHH01]

... and just to confirm... now you have EVERYTHING setup correctly! Congratulations!
( apart from the missing DMARC - entry. ^^ )

[000.161]        Connected to server
[001.334]    <--    220 doksana.doksana.net ESMTP Postfix (Ubuntu)
[001.334]        We are allowed to connect
[001.334]    -->    EHLO checktls.com
[001.495]    <--    250-doksana.doksana.net
...

doksana.net.                21599   IN      SOA     ns-de.1and1-dns.de. hostmaster.kundenserver.de. 2015112601 28800 7200 604800 600

doksana.net.                21599   IN      NS      ns-de.1and1-dns.biz.
doksana.net.                21599   IN      NS      ns-de.1and1-dns.de.
doksana.net.                21599   IN      NS      ns-de.1and1-dns.org.
doksana.net.                21599   IN      NS      ns-de.1and1-dns.com.

doksana.net.                3599    IN      A       82.223.18.195

doksana.net.                3599    IN      TXT     "v=spf1 +a +mx +a:doksana.doksana.net +ip4:82.223.18.195 ?all"

doksana.net.                3599    IN      MX      10 mail.doksana.net.


Your IP "82.223.18.195" resolves to:

195.18.223.82.in-addr.arpa.    21599    IN        PTR        doksana.doksana.net.

 

[egomaniacXFR]

Yay Thank you! That took a while ^^
Still no mail from the ISP. I'll additionally open a thread in their support forum and give an update if I got something new.