Network Setup
From ASSPSMTP
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Network Setup FAQs
Network Setup Configuration
based upon version 1.3.5(9.18)
- SMTP Listen Port (listenPort)
- The port number on which ASSP will listen for incoming SMTP connections (normally 25). You can specify both an IP address and port number to limit connections to a specific interface.
- Examples: 25, 127.0.0.1:25 Network Flow
- SMTP Destination (smtpDestination)
- The IP number! and port number of your primary SMTP mail transfer agent (MTA). If multiple servers are listed and the first listed MTA does not respond, each additional MTA will be tried. If only a port number is entered, or the dynamic keyword INBOUND is used with a port number, then the connection will be established to the local IP address on which the connection was received. This is useful when you have several IP addresses with different domains or profiles in your MTA.
- Examples: 125, 127.0.0.1:125, 127.0.0.1:125|127.0.0.5:125, INBOUND:125
- SMTP Destination Routing Table (smtpDestinationRT)
- If INBOUND is used in the SMTP Destination field, the rules specified here are used to route the inbound IP address to a different outbound IP address. You must specify a port number with the outbound IP address.
- Example:141.120.110.1=>141.120.110.129:25|141.120.110.2=>141.120.110.130:125|141.120.110.3=>141.120.110.130:125
requires ASSP restart
- Second SMTP Listen Port (listenPort2)
- A secondary port number on which ASSP can accept SMTP connections. This is useful as a dedicated port for VPN clients or for those who cannot directly send mail to a mail server outside of their ISP's network because the ISP is blocking port 25. You may also specify an IP address to limit connections to a specific interface.
Examples: 2525, 127.0.0.1:2525, 192.168.0.100:25000
- Second SMTP Destination (smtpAuthServer)
- The IP address and port number to connect to when mail is received on the second SMTP listen port. If the field is blank, the primary SMTP destination will be used. The purpose of this setting is to allow remote users to make authenticated connections and transmit their email without encountering SPF failures.
Examples: 587, 127.0.0.1:587
- Force SMTP AUTH on Second SMTP Listen Port (EnforceAuth)
- Force clients connecting to the second listen port to authenticate before transferring mail. To use this setting, both Second SMTP Listen Port and Second SMTP Destination must be configured above.
- SMTP Reporting Destination (smtpReportServer)
- The port number that ASSP will use to send Email Interface notifications to . If left blank, all notifications go to the primary SMTP Destination. You can specify <address>:<port> to limit connections.
- Example: 1025, 127.0.0.1:1025
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