Hello All,
please tell me how to change the SMTP port from 25 to 587. I have a problem with sending messages from outside of company. My ISP blocked traffic on 25 port. I don`t use Lotus Notes client but Outlook. I have changed the SMTP Inbound port and restard the SMTP task but Domino Server stop reciving the messages form outside (Gmail etc.). I can telnet on 587 port.
I have opened the 587 port on firewall.
Is it possible to set up Domino to listen on to ports 25 and 587?
Please help me to solve that problem.
Thank You.
Subject: Standard port
The standard port for incoming SMTP traffic is port 25, and there’s no way to inform an external SMTP server that your SMTP server is listening on a non-standard port. You will never get that to work.
Is your ISP really blocking incoming port 25, or is it just outgoing port 25? The latter is more of a common standard to avoid SPAM-sending virus. If that’s the case, the ISP needs to have an SMTP server set up for outgoing SMTP mail. Specify this SMTP server in your Domino server configuration document, and it will use it for all outgoing traffic.
If your ISP is really blocking incoming traffic on port 25, your only solution is to talk to them and have them open up port 25 incoming, or change ISP.
/Peter