![]() Setup a TLS proxy to listen on this port, handle incoming TLS traffic and forward to SMTP_PORT.Create an exception on the firewall to allow incoming traffic to SMTP port '25'.This is the port on which TRIRIGA Reserve SMTP agent listens for incoming requests. Set the SMTP_PORT property in the TRIRIGAWEB.properties fie.The network or OS administrator for your server should be able to configure this. The following are general steps on the process. It does not use a separate port but uses a security sub-system called Transport Layer Security (TLS) on port 25. To configure a secure SMTP Listener you should set up a TLS (termination) proxy that forwards and decrypts port 25 traffic to the alternate Reserve SMTP listening port. SMTP in Exchange uses port 25 for secure communication (SSL). If everything is setup correctly, you should see a response similar to this:Ģ20 Simple Mail Transfer Service Ready To verify your port is forwarding correctly, have your IBM TRIRIGA app server running, then run a telnet to port 25: sbin/iptables -t nat -A PREROUTING -j REDIRECT -p tcp -destination-port 25 -to-port Port_Above_1024 sbin/iptables -A FORWARD -p tcp -destination-port 25 -j ACCEPT A INPUT -s 0/0 -d serverIP -m state -state NEW,ESTABLISHED -p tcp -dport Port_Above_1024 -i eth0 -j ACCEPTģ) Setup port 25 for forwarding to the alternate port: A OUTPUT -p tcp -s serverIP -d 0/0 -dport Port_Above_1024 -m state -state ESTABLISHED -j ACCEPT A INPUT -s 0/0 -d serverIP -m state -state NEW,ESTABLISHED -p tcp -dport 25 -i eth0 -j ACCEPT A OUTPUT -p tcp -s serverIP -d 0/0 -dport 25 -m state -state ESTABLISHED -j ACCEPT Using a text editor of your choice, add these lines to your /etc/sysconfig/iptables file: STUNNEL IPTABLES UPDATERun these commands at your own risk.ġ) Update your firewall to also open up port 25 and the alternate port, Port_Above_1024. Your flavor of Linux or UNIX server may be different. Disclaimer: These instructions are for Redhat Linux 6. These commands need to be run as a root user. Here is a more in depth example of steps 2 and 3 from above. The Linux administrator for your server should be able to configure this.ġ) Update the SMTP_PORT property in the TRIRIGAWEB.properties file to a port greater than 1024.Ģ) Create an exception on the firewall to allow incoming traffic to the alternate SMTP port and port '25' as well.ģ) Forward port 25 traffic to the alternate SMTP port Second, an exception will need to be created on the server's firewall to allow incoming traffic to the port from the Exchange server. First, it is choosing an available and accessible port on the server. There are two things to keep in mind to enable a successful alternative SMTP port setup. With this method, we can start the Reserve SMTP listening port as a non-administrative user. A solution is to set the SMTP listening port from '25' to an alternate port number, and have port '25' traffic forwarded to that alternate port number. The alternative is to bind the port as a root user, but that would defeat the purpose of the Linux security model put in place. However, for a TRIRIGA app running on a Linux based server, we run into a dilemma where if we try to bind the SMTP port to port '25' as a non-root user, we are restricted because only root users can bind to ports 1024 and below (Windows doesn't seem to have this problem). In general, the SMTP port number is '25', which is typically the SMTP port number used by most applications. Refer to this wiki page: Change Send Connector Port. Note: If you are using an On Prem Exchange server, there is an easier setup. This wiki describes two different ways to configure an SMTP Listener that is needed for Exchange to TRIRIGA integration. The listener will start running when the Reserve SMTP agent starts. Reserve requires a SMTP listening port to be setup on the server to receive incoming mail from the Exchange server. This allows meeting requests to always be in sync between TRIRIGA and Exchange. In TRIRIGA Platform version 3.3 and later, TRIRIGA Reserve Exchange integration is done via SMTP. ![]()
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