Edit MX Entry
For WHM version 11.40
(Home >> DNS Functions >> Edit MX Entry)
A mail exchanger (MX) entry tells a client which server receives mail sent to a domain name. The Edit MX Entry
interface allows you to list destination mail servers and designate a priority value to each.
How to edit MX entries
To edit your server's MX entries:
- From the Choose a Domain to Edit menu, select the name of the domain for which you wish to configure MX entries.
- Click Edit. A new screen will appear.
- Select which type of Email Routing you wish to use.
- Enter the desired settings for each MX entry in the MX Entries section.
- Click Save.
You can select any of the following types for your mail exchangers:
| Mail Exchanger Type
| Automatically Detect Configuration
|| Allows WHM to choose the most appropriate type of email routing based on a query of the MX record. WHM chooses the type of routing based on the following criteria:
Important: Automatic detection is not possible if the MX entry does not resolve. (For example, if you mistype a domain name or enter one that does not exist.) MX entries that do not resolve while Email Routing is set to Automatically Detect Configuration will generate a warning and default to the last known setting.
- If the lowest priority mail exchanger points to an IP address on this server, WHM chooses the Local Mail Exchanger setting.
- If a mail exchanger with a higher priority points to an IP address on this server, WHM chooses the Backup Mail Exchanger setting.
- If there are no mail exchangers that point to an IP address on this server, WHM chooses the Remote Mail Exchanger setting.
| Local Mail Exchanger
|| The server always accepts mail for the domain.
| Backup Mail Exchanger
|| The server accepts mail for the domain and stores it until a higher priority (lower number) mail server becomes available.
| Remote Mail Exchanger
|| The server will not accept mail for the domain. This entry will always have the lowest priority value.
: If you wish the Automatically Detect Configuration
option to consider additional IP addresses as local, you must add them to the list of local IP addresses. To add IP addresses to the list, go to the Configure Remote Service IPs
interface at (Home >> IP Functions >> Configure Remote Service IPs
) in WHM.
You can set the following settings for each MX entry
|| This integer value specifies the Time to Live. Time to Live indicates how long a particular record remains in memory, in seconds, before it refreshes. This value defaults to
|| This integer value represents the priority order of the mail server, in relation to other MX entries. The lower the Priority number, the higher the server's priority.
- The server(s) with the lowest priority number will serve as the primary mail server(s).
- Servers with higher priority numbers serve as secondary mail servers.
- If you assign multiple mail servers to the same priority value, when that level of mail server is needed mail will be distributed to those servers randomly.
| MX Destination
|| The name of the mail server. (For example,
Add and delete MX entry fields
To add a new MX entry
- Click Add Another MX Entry Field. A new row will appear.
- Enter the desired settings.
- The TTL setting will default to
- The Priority setting will default to a value that is
10 higher than the highest priority value of an existing MX entry.
- The MX Destination setting will be blank.
: The bottom MX entry
field is always a new MX entry
, and displays the label
in the furthest right column.
To delete an existing mail exchanger, click Delete
next to the desired MX entry
Topic revision: r10 - 04 Jul 2013 - 15:14:07 - Main.SarahHaney