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PostPosted: Wed Feb 01, 2017 3:06 pm 

Joined: Fri Jan 20, 2017 3:12 pm
Posts: 3
Hi, I read lots of post, but i cant get this work.
I need someone´s help.

I Tried the Linode Reverse DNS, and if i add :( ) // error : No match was found for ''. Reverse DNS must have a matching forward entry that points to one of your IPs.

If I add ( it´s ok, but i need my FQDN, to match the HELO in my Mails Headers.

What I Have up to now:
- I have Installed Debian 8 - Plesk Onyx 17
- My hostname (machine name) is :
root@fobos:~# hostname -f
- Plesk runs it´s own DNS server ( Not using linode DNS manager)
- My registrar ( :
ns1 and with autodelegation (server ip)

I can send and receive emails (but not for Hotmail )

In MXTOOLBOX, i run the SMTP test:
Test Result
SMTP Banner Check Reverse DNS does not match SMTP Banner More Info
SMTP Reverse DNS Mismatch OK - resolves to
SMTP Valid Hostname OK - Reverse DNS is a valid Hostname
SMTP TLS OK - Supports TLS.
SMTP Connection Time 0.719 seconds - Good on Connection time
SMTP Open Relay OK - Not an open relay.
SMTP Transaction Time 2.703 seconds - Good on Transaction Time

Type IP Address Domain Name TTL
PTR 24 hrs

In my SSH :
root@fobos:~# host domain name pointer

Sending an email to hotmail, it is rejected:
Reporting-MTA: dns;
X-Postfix-Queue-ID: 5A0EB5FCEB
X-Postfix-Sender: rfc822;
Arrival-Date: Wed, 1 Feb 2017 16:51:48 -0300 (ART)

Final-Recipient: rfc822;
Original-Recipient: rfc822;
Action: failed
Status: 5.0.0
Remote-MTA: dns;
Diagnostic-Code: smtp; 550 SC-001 (COL004-MC6F11)

IN PLESK (the only site hosted is
I added : A record A

Sure I´m missing something, but cant see it.
Any help, I will be very gratefull,

PostPosted: Mon Mar 20, 2017 12:42 pm 

Joined: Fri Jan 20, 2017 3:12 pm
Posts: 3

I didn´t wait enough time for propagation.

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