Challenges and Solutions learned during development Case Management Platform as a Service
Monday, October 11, 2010
Connecting To xxx.xxx.xxx.xxx...Could not open connection to the host, on port 25: Connect failed.
Many people have that problem. It may be caused by several reasons: firewall, antivirus, security policy of ISP, etc. In my case, it was antivirus software which blocked 25 port.
Steps to identify problem.
1. Telnet host on 25 port. See
2. Try to turn off firewall.
3. Try to turn off antivirus. Worked for me! Add the process and / or port to exceptions.
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