Help File smtp ... These commands are used for the Simple Message Transport Protocol service (that is, mail). smtp batch [] Display or set the smtp batch flag. When set to 'on', messages in the outgoing mail queue are sent as a batch, whereby many of the SMTP commands are sent in one fell swoop before waiting for responses. (Unfortunately this breaks many brain-damaged SMTP servers, and so may not be usable in practice). smtp gateway [] Displays or sets the host to be used as a "smart" mail relay. Any mail sent to a host not in the host table will instead be sent to the gateway for forwarding. smtp kick Run through the outgoing mail queue and attempt to deliver any pending mail. This command allows the user to "kick" the mail system manually. Normally, this command is periodically invoked by a timer whenever net.exe is running. smtp list List the messages in the outgoing mail queue. smtp maxclients [] Displays or sets the maximum number of simultaneous outgoing SMTP sessions that will be allowed. The default is 10; reduce it if network congestion is a problem. smtp mode [] By default, the SMTP mode is 'route', which means that incoming mail is directed to the mail queue SPOOL/MAIL. You can then read the mail there with the 'bbs' command, or by using an external mailer such as BM or ELM. If the mode is set to 'queue', incoming mail is directed instead to the special mail forwarding queue SPOOL/RQUEUE. The mail is stored in .WRK and .TXT files in the same format as the normal outgoing mail files in SPOOL/MQUEUE. A special forwarding program (not supplied with NOS) is then required to send the mail in SPOOL/RQUEUE onwards to its destination. This mechanism provides added flexibility to NOS for handling mail in different ways. smtp accept  smtp reject [] These two subcommands allow the sysop to build up a list of systems from which mail is not wanted, in the case of reject, and to remove items from the list with accept. smtp timer [] Displays or sets the interval between scans of the outbound mail queue. For example, smtp timer 600 will cause the system to check for outgoing mail every 10 minutes and attempt to deliver any- thing it finds, subject of course to the smtp maxclients limit. Setting a value of zero disables queue scanning altogether, note that this is the default! This value is recommended for stand alone IP gateways that never handle mail, since it saves wear and tear on the floppy disk drive. smtp trace [] Displays or sets the trace flag in the SMTP client, allowing you to watch SMTP's conversations as it delivers mail. Zero (the default) disables tracing.