Tagged Questions

0
votes
0answers
119 views

Sendmail issue with IPv6

I have an email server configured with multiple-instance of sendmail running each on different IPv4 and IPv6 addresses. Everything is running smooth until a point where for some domains/emails ...
0
votes
5answers
138 views

Many domains/sites hosted on same server, CNAME alternatives to avoid writing same IP in DNS?

I have many sites (each one with its own domain) all on the same cPanel hosted server (let's say server IP is 1.1.1.1 and server main domain is myserver.com) All these domains use third party DNS ...
3
votes
2answers
114 views

Will an MX record “follow” a CNAME record?

I have a situation I'm trying to work through that I'm not entirely sure how to solve. Here's the situation: I have a domain, let's say sub.otherdomain.com, that I want to set up e-mail addresses ...
1
vote
0answers
69 views

Windows Server 2008 DNS server CNAME resolution and TTLs

We have a Windows 2008 SP2 DNS server configured to use root hints. We have a certain MX record lookup that it periodically fails to resolve for our client machines. The lookup is for the MX record ...
1
vote
1answer
69 views

CNAME Setup on Different Server

I have domain and hosting at GoDaddy.com with domain earthline.info. But my email is located at CBN.net.id. I have setup the mx with this configuration: But for CNAME, i'm not sure what i must ...
0
votes
2answers
203 views

Email forwarding and CNAME records

I have a Heroku app and a domain that maps to it. The host records are set up as follows: Now I want email to admin@mydomain.com to be forwarded to my gmail account. I was told by the support for my ...
0
votes
3answers
324 views

Dynamic IP and MX Record

I have read that I "must not" use CNAMEs in MX record entries. My in-house mail server is connected to the internet with a provider where the IP changes every two/three months. I have a subdomain ...
2
votes
1answer
96 views

Is It OK to Rewrite Email Addresses Intended for Remote Delivery to Use CNames?

I've discovered that a remote site is rewriting email intended for our machines to use the CName of the machine that the mail was addressed to (e.g. mail@virtual.virtualdomain.com becomes ...
0
votes
1answer
67 views

Using aliases for MX records

I have a domain, say example.com, and don't run my own mailserver so I use my ISP's, say myisp.com, so in my DNS the MX records point to ex1.myisp.com and ex2.myisp.com. I also have an ill-conceived ...
0
votes
1answer
59 views

Subdomains for MX using CNAMEs

Let's say I've got a wildcard subdomain CNAME for root domain: *.domain.com CNAME domain.com domain.com A 130.71.45.31 This works well for websites, e.g. subdomain.domain.com. Now let's say I have ...
0
votes
2answers
331 views

Can I have a CNAME and an A-record for the same domain name?

I have a dedicated domain mydomain.com and I have a Windows Azure service that has to send email from addresses @mydomain.com. I found a mail service that agrees to send email "on behalf" of my ...
1
vote
1answer
239 views

messed up confused dns records!

I'm totally new to this, please help. While trying to redirect the mail from my server to gmail using MX records, I think I've messed up, and I'm way confused about that. First: I can set DNS records ...
1
vote
1answer
246 views

Changing web host but not mail host

I have a client who switched their web hosting to my linode, but wants to keep their mail services on bluehost. Everything web-related switched over fine. I'm encountering undeliverable mail when ...
0
votes
1answer
191 views

How do I setup an off-server email system, similar to Google apps.. but not Google…?

We have a website hosted on a server that does not have any type of mail system installed. I want to setup an IMAP and POP email system for my company. We want ournames@ourdomain.com (in otherwords, ...
1
vote
2answers
248 views

CNAME - MX Records (Google Apps)

I need to know if I can "CNAME" older domains to a new domain names so that BOTH email addresses and browser requests will still work. I say this is because I will need emails for ...
1
vote
1answer
463 views

Move primary domain hosting from GoDaddy, but keep email & subdomains there w/ non-GoDaddy registrar

Given a domain registered through DotRegistrar, with GoDaddy as the current host (shared hosting) I need to figure out how to move the hosting for the primary domain to another hosting provider ...
1
vote
2answers
239 views

MX records and CNAMEs

I realize similar questions were asked/answered on this, but I have a subtle detail to which I can not find answers anywhere. Let's exemplify with the following DNS entries: foo.example.com A ...
6
votes
2answers
2k views

Can you reference a CNAME record in an MX record?

We have several domains all pointing their MX records at mail.ourdomain.com, an internal mail server. We are looking to outsource our email to a new supplier, who would like us to use ...
5
votes
7answers
4k views

DNS: Subdomains that Require Both an MX Record and a CNAME

Let us say we own the zone mywebservice.com. I would like each of my customers to get their own subdomain, such as customer.mywebservice.com. customer.mywebservice.com needs to be a CNAME to a ...