How to check if outgoing mail server is blocked by your ISP Kenya Print
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Type the following command:
telnet example.com 25
View Results:
If Port 25 is not blocked, you will get a successful 220 response (text may vary).
Trying 64.13.192.208...
Connected to example.com.
Escape character is '^]'.
220 cl34.gs01.gridserver.com ESMTP Exim 4.63 Tue, 24 Jun 2008 13:45:04 -0700
If Port 25 is blocked, you will get a connection error or no response at all.
Trying 64.13.192.208...
telnet: connect to address 64.13.192.208: Connection refused
telnet: Unable to connect to remote host
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