This service corresponds to the qmail-smtpd program. This is the service that listens to TCP port 25 and receives mail from other MTA's.
Command-line control requires root access through a terminal or SSH session. The SMTP Inbound service is managed and monitored by the daemontools software suite. The svc program is used to signal stops, starts, and restarts.
Start/Stop/Restart the SMTP Outbound Service
This service corresponds to the qmail-send program. This is the service receives mail from the qmail-smtpd program and delivers it to the correct local mailbox. It also receives mail injected from a local mailbox and sends it to the remote delivery program. That is why it's refereed to as the "SMTP outbound" service in InterWorx, but really can be considered the main "traffic cop" when it comes to mail management, directing mail traffic to where it needs to go.
Command-line control requires root access through a terminal or SSH session. The SMTP Outbound service is managed and monitored by the daemontools software suite. The svc program is used to signal stops, starts, and restarts.
[[email protected] ~]# svc -u /service/send
[[email protected] ~]# svc -d /service/send
[[email protected] ~]# svc -t /service/send
[[email protected] ~]# svstat /service/send
Some mail servers will reject mail from a mail server that has a hostname unresolvable by DNS, therefore it's best if the mail server host name is able to be resolved via DNS.
Procedure - Change the Default Domain
The default domain appending to any address that doesn't include a domain portion (i.e. a missing @domain.com will be translated to use the default domain).
The default port is 587, but you can change it to any unused port you wish.
The new port will show up on the list mentioned as SUBMISSION if you used port 587 as this is the User Submissions SMTP port rather than the server submissions port as port 25 is. If you absolutely need to edit the name you can edit the /etc/services file.
Disabling port 25 will cause your server to be unable to send or receive mail. You will want to leave it activated if you want your server to have email functionality.
This is the message the server responds with when connected to for mail delivery. The first word of this message should be the name of the current host. Corresponds to the /var/qmail/control/smtpgreeting control file.
The maximum number of concurrent incoming SMTP connections for the mail server. Corresponds to the /var/qmail/control/concurrencyincoming control file.
The maximum amount of time in seconds the SMTP mail server will wait for each new buffer of data from the remote SMTP client. Corresponds to the /var/qmail/control/timeoutsmtpd control file.
The maximum inbound message size in bytes that is allowed on the server. Setting this to 0 will allow an unlimited message size. Corresponds to the /var/qmail/control/databytes control file.
For more details and examples of SMTP routes, take a look at our detailed documentation.