ENABLING ETRN SUPPORT
To enable the ETRN support, do the following steps:
- Configure the following fields:
- Include Alternate Name List
Used to enable the system to send ETRN requests to alternate remote SMTP hosts.
- Send ETRN to these hosts when SMTPC starts
Used to enable sending an ETRN request only to a specific host, even if there is no currently
queued outbound mail. This ensures that eventhough there is no outbound mail to that host
when SMTPC runs, the host still receives ETRN requests. An option to add or delete hostnames
is also available.
- Send keep alive packets
Sends periodic data to the discard port of the remote system to keep the link active (typically used on PPP or some
ISDN connections). Some TCP/IP stacks can be configured to time out and automatically disconnect after a predetermined
period of zero network activity. Under this condition, it is necessary for the system to keep the stack active if SMTPD
is to continue receiving incoming mail. This option enables SMTPD to keep sending alive packets to maintain the dialup
connection.
- Run a program when connection is established
Allows the administrator to define the path of the program to be run after the connection is made.
- Click the Apply button to save the settings.