3
votes
1answer
250 views

A record required for MX record?

Previously our domain, let's call it ourdomain.com, pointed to an IP address (our web host). In addition, we use Office 365 to handle our domain email accounts. DNS records: ourdomain.com A ...
0
votes
2answers
314 views

Using a CNAME to forward traffic from a naked domain

I have a domain, flyh2.com. I use a CName to forward www.flyh2.com to flyh2.elasticbeanstalk.com where my web site is hosted. This is the only way Amazon allows custom domain names. A records aren't ...
0
votes
3answers
84 views

How to change domain's A record without disabling incoming mail traffic for a while?

I have situation where my domain's A record is pointed to certain IP address, which I need to change, but MX record have destination - to my domain name! How to change A record and to avoid mail ...
0
votes
2answers
2k 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 ...
3
votes
1answer
236 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 ...
7
votes
2answers
4k views

Not receiving mails from some senders due to DNS config

I have noticed a peculiar behavior of my google apps domain. Most of the mails come through as you would expect, but over a period of time I have come to the conclusion that mails from certain senders ...
3
votes
1answer
101 views

Google Apps is routing mail unexpectedly

This has been going on for two days now and it's really bugging me. I've owned a domain name for a few years now. Let's call it example.com. I've had Google Apps free edition set up there for a few ...
1
vote
2answers
513 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
3answers
1k views

SMTP, use CNAME or real name as server address?

Problem description: I'm managing a corporate Email server for nlscan.com serving xxx@nlscan.com. However, for historical reason, we still support xxx@mail.nlscan.com. That is, foo@nlscan.com and ...
1
vote
1answer
307 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
205 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, ...
0
votes
1answer
402 views

Issues using gmail with google apps and external domain

I have recently tried to use gmail through google apps as my main email client, but I'm experiencing a few different problems. I am managing the domain (conjunktiondesign.co.uk) through 123reg.co.uk ...
8
votes
2answers
3k 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 ...
1
vote
4answers
8k views

How to redirect domain without breaking the email?

Good morning - I'm a product manager type building an application for the first time. I've taught myself the ruby and rails pieces, but I'm a little gunshy about the sysadmin stuff. I apologize in ...