Copyright © 1997 by International Business Machines Corporation
DDNS Server Administrator Help
Use the Mail Exchange tab of the Host
Notebook to specify one or more mail exchangers for the host, which
overrides any mail exchangers defined for the domain. A mail exchanger runs a
mail agent that delivers or forwards mail for the host. The data is stored in
the mail exchanger (MX) resource record.
The Mail Exchange tab has these fields:
- Mail exchange host name
- Specifies the complete host name of a mail exchange host to add to the
mail exchange host set.
Note:
The preference number must accompany the mail exchange host name. After
typing both, click Add.
- Preference number
- Specifies the preference number for a mail exchanger, which is a number
between 0 and 65535, where 0 represents the most preferred mail exchanger.
Preference numbers are significant only in relation to preference numbers of
other mail exchangers specified. A mail exchanger with a low preference number
generally represents the quickest and most efficient mail route. If the mail
exchanger with the lowest preference number cannot be contacted, the one with
the next lowest number is tried.
The mail exchange host name must accompany the preference number; after
typing both, click Add.
- List box
- Displays the preference numbers and names of the hosts in the mail
exchange host set. To remove an entry from the list box, select the entry and
click Remove.
These push buttons are available on the Mail Exchange tab:
- Add
- Puts the specified item into the corresponding list box.
- Remove
- Deletes the selected item or items from the list box.
- OK
- Retains the configuration data in this notebook and closes the notebook.
- Cancel
- Cancels any actions taken in this notebook and closes the notebook.
- Help
- Displays information about the current notebook page.
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