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ZIMBRA AND CENTOS Linux Server - client host rejected

We have issues sending email to certain domains who don’t recognize our MAIL host domain server account.

Client host rejected: cannot find your hostname, in reply

to RCPT TO command)

Infrastructure: ZIMBRA WEBMAIL on a CENTOS 6 SERVER and the Network Gateway is a PFSENSE Firewall. They are all in a Cloud environment.

Everything is working fine, the only issue is the email to certain domains who reject email with the message: cannot find your hostname, in reply to RCPT TO command).

WE NEED TO IMPLEMENT A REVERSE DNS FOR OUR INTERNAL MAIL SERVER MATCH OUR DOMAIN

Please: We need someone who understands LINUX, PFSENSE, and ZIMBRA and knowns how to set up a DNS Reverse ARP Proxy to resolve our internal mail name to our external mail domain and email messages wont be rejected anymore.

Taidot: Linux, Verkonhallinta, DNS

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Tietoa työnantajasta:
( 0 arvostelua ) Asuncion, Paraguay

Projektin tunnus: #30976201

Myönnetty käyttäjälle:

xaviermedina99

I have several zimbra servers in centos and with pfsense as a firewall, I have a lot of experience in this regard, and I could check it, showing you the servers that I manage, I can help you in your project as soon as Lisää

$30 USD 4 päivässä
(0 Arvostelua)
0.0

5 freelanceria on tarjonnut keskimäärin $30 tähän työhön

udayarpandey2022

Been working with Zimbra from past 7+ years. Deployed over 300+ Zimbra servers. I think I can help you. Thanks!

$50 USD 7 päivässä
(281 arvostelua)
6.6
(285 arvostelua)
6.6
ArchnaAdmin

Hi, I will check and resolve the issue on server for mail receiving. I do have expertise in web hosting, server setup, server configuration, etc Please discuss to start. Thank you.

$30 USD 1 päivässä
(102 arvostelua)
5.6
castler

Hello, Normally you just need to ask whoever owns the IP (range) to set the PTR for you to match the hostname of the mailserver. Some mail systems check this and reject deliveries if not matched, others don't have thi Lisää

$10 USD 2 päivässä
(0 arvostelua)
0.0