Create MX record  Create MX record

Dynu gives you full control over all the DNS configurations for your domain names. You can log onto the control panel to manage your DNS records.

What is an MX record?


MX records or mail exchange records specify which mail servers are responsible for a particular domain. An MX record is a type of DNS record which is responsible for accepting incoming email and routing it to a specified mail server, based on the information in the record.

How to add an MX record?


To add an MX record in the control panel, you may follow these 3 steps.

Listing Item Step 1

Log into control panel, go to Dynamic DNS Service Icon DDNS Services   and click on your domain name.

Listing Item Step 2

Go to MX Records Icon MX Records   to add an MX Record.

MX Record Alias   Enter the subdomain name for which you need MX records. For Example, mx. Leave empty if you are adding MX records for the primary domain name.

MX Record TTL   How long the server should cache the information. The TTL is set in seconds, 60 is 1 minute, 1800 is 30 minutes.

MX Record Hostname  Enter the MX record you need to point your domain name to. For example, ASPMX.L.GOOGLE.COM.

MX Record Priority   The order in which mail servers are tried in case one is unavailable. The lower the number, the higher the priority. An MX with a priority of '10' would be tried before one of '20'.

MX Record Dynu Dynamic DNS


Listing Item Step 3

Check if your MX record has gone into effect using DNS Lookup tool. Enter mx.myhostname.dynu.com as Hostname, and choose "MX-Mail Exchange" as Type.

MX Record Dynu Dynamic DNS


Bulb Tooltip   Load balancing using MX records

When your organization is sending and receiving a lot of emails, you would need to route inbound emails to multiple mail servers in a way that the mail servers process roughly the same amount of emails, thus load balancing the mail servers. For example, you may define 3 MX records with an equal value. This will only work provided that the 3 MX records resolve to different A records.

yourdomain.com MX 10 mail1.yourdomain.com
yourdomain.com MX 10 mail2.yourdomain.com
yourdomain.com MX 10 mail3.yourdomain.com


Alternatively, you may set only 1 MX record, but assign multiple IP addresses to it.

yourdomain.com MX 10 mail1.yourdomain.com
yourdomain.com MX 10 mail1.yourdomain.com
yourdomain.com MX 10 mail1.yourdomain.com


mail.yourdomain.com A mail.yourdomain.com 10.0.0.1 10.0.0.2 10.0.0.3