Copyright (C) 1997, 1998 by International Business Machines Corporation
DDNS Server Administrator Help
Use the Mail Exchange tab of the Primary
Domain Notebook to define mail exchangers for the hosts in the
domain. A mail exchanger runs a mail agent that delivers or forwards
mail. The data is stored in the mail exchange (MX) resource
record.
Note:
The mail exchangers defined for the domain are used only for hosts that do
not have their own mail exchangers defined.
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. 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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