I want to send an email via telnet. When I typed to the command prompt
telnet 'smtp_servername' 25 the following message appears Could not open connection to the host, on port 25: Connect failed
Server name and listening port are correct. I have configured an account with these credentials with Mozilla Thunderbird (Secure Authentication: yes and Connection Security: None) and is working fine.
If I do the same test with the pop server is working fine.
telnet 'pop_servername' 110 +OK The Microsoft Exchange POP3 service is ready.
Any ideas why the smtp server is not answering my telnet connection?
Thanks in advance,