Server's Hostname/nameservers Affect Mail Delivery
Mar 31, 2008
our company is ordering a new dedicated server and we are a little unsure what we should choose as far as the full hostname and nameservers of this one server.
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Dec 15, 2007
This server will have a couple different websites on it, but really, there is only one BIG website on it... let's call it abcd.com.
While most would pick a hostname of host.abcd.com for instance, if at all possible, we would like the domain name part of the hostname to be something different than abcd.com. We own a domain name that doesn't point to anything yet (unuseddomain.com) and we were wondering if we could use that domain in our hostname.. host.unuseddomain.com.
And instead of using abcd.com as the domain name for our own nameservers (ie. ns1.abcd.com, ns2.abcd.com), we would like to again, use the unused domain name we own (unuseddomain.com) for the nameservers domain name: ns1.unuseddomain.com, ns2.unuseddomain.com.
Will this work? Is this perfectly acceptable?
Since the one website we really care about on this server (the one we got the server for in the first place) is abcd.com, is using the unuseddomain.com for the hostname and nameservers (as above) a bad choice in anyway regarding email deliverability? I understand that mail ISP's (hotmail, yahoo, etc.) do all kinds of checks on hostnames (PTR), etc... and we want to make sure that we aren't hurting ourselves in anyway by using an "empty" domain name that we own as our hostname's and nameserver's domain name.
For instance, if we send mail from the abcd.com account, it will use mail.abcd.com (188.8.131.52) as it's outgoing mail server... Hotmail will see this... do a reverse-dns lookup on 184.108.40.206 and see host.unuseddomain.com. See what I'm saying? It all will work, but will it toss up red flags?
Hello I am totally new to Dedicated hosting
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Nov 22, 2008
I got my server for $350 as I am going to host some high resource sites
Everything went well. I learned to use SSH plus I have Cpanel/WHM
One thing I am confused about is?
what exactly is this damn thing called "Hostname"? why do we need it and whats its significance?
in WHM I entered my hostname as "web1.mydomain.com" (where mydomain.com is one of my domains that I specially registered and is not being used anywhere else)
now in the A records for mydomain.com, am I supposed to give the IP of the server?
also what about the Nameservers for mydomain.com that I am supposed to enter in my domain admin panel, should I leave them blank?
I know how to do this by analysing the headers, but we have a customers who doesn't believe what we are telling them.
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May 14, 2015
Is there some kind of 3rd party service or script that we can point them to? So they can send an email to the service (or paste headers, or whatever) and it tells them who is the sending mail server hostname/ip?
(The problem is that this customer doesn't understand that all email sent from the server uses the same SMTP server hostname/ip. They are convinced that if they connect to "mail.their domain.com" then this is what is reported as the sending mail server/IP.)
I have a server that I use to host my primary domain, and I have a cople Plesk servers, now I updated the hostnames of all the servers like
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Feb 17, 2015
Now when the plesk server sends a mail it goes in spam always,
In the SPF records of the primary domain sits this
myserverplace.de. IN TXT "v=spf1 a mx a:myserverplace.de a:s1.de.myserverplace.de ip4:220.127.116.11 ip4:18.104.22.168 ip6:2a01:4f8:201:81b8::60 ?all"
But when I actually send the mail in the headers of the received mail I get this.
Received: from s1.de.myserverplace.de (s1.de.myserverplace.de. [22.214.171.124])
by mx.google.com with ESMTPS id p2si2158952wjy.73.2015.05.14.04.09.17
(version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128);
How would I set this up so this doesn't happen?
In an environment where there is no webmail enabled for hosted sites and no sites have registered names (eg; they all belong in "our name space"), what is the affect of NAMED not running?
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Feb 12, 2007
One affect that I have seen is with Site Scheduled Tasks that need URL resolutions. This appears to fail if Named is not running. All OTHER site content seems to work just fine. Apparently even in WordPress Multi-user/site situations.
I FULLY understand bind/named (and /etc/hosts, /etc/resolv.conf, /etc/nsswitch.conf), but it seems that it some cases, virtual hosted sites do not need Named (active) to function. This is NOT a case of incorrect DNS definitions created by Plesk for any hosted site.
SO - what is the "affect" of Named NOT running in a PLesk-12 Linux environment - not only for hosted sites but also the Plesk server itself?
I have ever made a DNS Server change and I was curious how this is going to affect my e-mail.
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Lets say this is my URL - www.testURL.com
I also have my e-mail setup as MyName@testURL.com
I now have a new host so we are going to change the DNS settings so www.testURL.com now points to the new web host. Is this going to affect my e-mail address MyName@testURL.com or do I also have to make a request to get the e-mail changed as well?