Domains »Custom DNS
If you’ve mapped a domain to your WordPress.com blog, you can use Custom DNS records to make your domain compatible with other services not hosted at WordPress.com, such as an email provider.
Before you begin changing the records, please make sure you have the required information from your service provider.
To access Custom DNS, go to Store → My Domains in your Dashboard.
Next to each domain you have mapped to your WordPress.com blog, you’ll see a link labeled Edit DNS. Click it and you’ll see a couple of options.
Adding Custom DNS Records
You can enter Custom DNS records into the text form at the top of this page. WordPress.com Custom DNS accepts A, CNAME, MX, TXT and SRV records. We reserve control over the records that make your blog work, so you don’t have to worry about accidentally breaking it.
Enter one record per line. Entries must obey the format specified at the bottom of the page, which uses these examples:
MX <pref> <host>.
CNAME <subdomain> <host>.
A <subdomain> <IP>
SRV <_service._protocol> <priority> <weight> <port> <domain>
This is a sample set of records already entered into the form:
Note: that you can set up custom A records here.
Note: Our DNS editor currently has a limitation of 192 characters for TXT records. If this poses a problem for your needs, the workaround is to create a CNAME record to an alternate domain and host the TXT record there. Alternatively, some third-party services may allow you to use an alternate, non-TXT form of authentication.
If you would like the system to check your records and make sure they are properly formatted, click Validate without saving. Once you have entered the records you need and are satisfied that they have been entered correctly, click Save DNS records to save your changes.
The service you are trying to use should supply you with the records you need to make these changes. Contact your service provider to get the necessary information if you are unsure.