-1
votes
1answer
52 views

A-Record to point to hosting vs. changing DNS while keeping the mail externally

I currently am dealing with a client whose e-mail is hosted on Google. We are just in the process of taking over their domain, but their current hosting company suggests a different set up than I do ...
3
votes
1answer
225 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
1answer
137 views

Using alternate server for specific subdomain - DNS settings

I'm trying to set up DNS records for a domain name, such that mail.domain.com uses a server that is different from any other request to *.domain.com. As I've been going about trying to figure out how ...
0
votes
2answers
31 views

Can I control which DNS record a client application uses?

I'm trying to make our set of servers more fault tolerant. I have a web server, a mail server and a PBX server that uses SIP. I know that for each service, I can have the DNS return multiple A, MX ...
0
votes
3answers
81 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 ...
1
vote
3answers
471 views

Sending an Email from 2 Mail Servers

We are currently attempting to move away from using a "local" mail(exchange) server to an cloud based offering for all our automated emails. The problem is that we send and receive thousands for ...
2
votes
2answers
1k views

CloudFlare offers DNS root CNAMEs. Any resolution gotchas to be aware of?

I'm not that familiar with the inner workings of DNS, preferring to just add my CNAMEs and A records as appropriate, and leave the behind the scenes to other services. I host a few sites on Amazon S3, ...
0
votes
2answers
67 views

Does adding new MX record go along with adding a new CNAME record?

If I add an MX record for a subdomain email address, do I also need to add a CNAME for that subdomain? For example I want email addresses like *@mysubdomain.mydomain.com to be handled by a different ...
1
vote
4answers
755 views

Preventing MX record fallback

I have a website, example.com, running on a Windows 2008 server with IIS 7 and the "IIS 6" SMTP service. The website regularly sends out emails to info@example.com. In rare instances, the MX record ...
3
votes
2answers
207 views

Is @ the same as the IP address for @ in the MX record entry of a zone file?

I have the following configuration in my DNS Zone. I want to switch the @ record to a different IP address, but I want to keep the MX records the same. Please note the IP address has been changed to ...
1
vote
1answer
161 views

Subdomain A record, how to proxy subdomain MX record

I have a subdomain of a site, lets say foo.example.com which has an A record to the IP of another server, lets say example2.com. Ideally, I would like to have the example2's server also take care of ...
0
votes
2answers
150 views

Force mailserver to send via internet without checking locally first

Is there any way to stop a mail server from checking locally when sending an email and have it send via the internet everytime? An example: I have a domain name attached to an account on my server ...
2
votes
1answer
262 views

Registrar and Host are Different - Should I move DNS?

Registrar and Host are different companies. Obviously A, MX, CNAME, TXT, SRV should be changed. However, should I move Domain Name Servers to the Host or keep them with the Registrar? Thanks.
0
votes
3answers
643 views

Changing ISP - Want to Minimize Downtime on DNS Change

I do basic IT for our company, but have started getting into more server-level stuff. So I really need a dumbed down answer if possible. We just recently switched ISPs. We are using a FatPipe ...
0
votes
4answers
139 views

Change of Domain result in Lost Emails?

Recently we've had quite a few requests where clients are changing their domain names and want to keep the same email addresses and have the new domain be the main site. The old domain will then ...
2
votes
1answer
115 views

splitting A and MX records

I have a domain name which currently points to a shared hosting service. I've set up a dedicated Apache server for the web hosting, but would like to keep using the mail server of the old host. Is ...
1
vote
1answer
90 views

Subdomain mapping to domain

What happens if you have 2 DNS entries: Name | Type | Value -------------+-------+-------------- example.com | A | 20.20.20.20 example.com | MX | mail.example.com Does this ...