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Telnet on Port 25 "No route to host"

I can not receive any mails.I have tried a telenet session from another linux mashine on port 25, it failed.
When trying to send email tirectly using sendmail I get the following error message: "No route to host" The same errors I get on the linux mashine when trying to telnet on port 25. Can anyone help me? Qmail works fine as relay for the internal mail server.
The DNS entry works as the firewall is reachble by using its DNS name (SSH, https, ping if ICMP activated)
Has anyone an idea?

[ 22 April 2002: Message edited by: Jochen Schmitt ]

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0 agala over 23 years ago

Could you tell me a bit more of your config? Which machine should respond to telnet 25?
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0 Jochen Schmitt over 23 years ago in reply to agala

I use ASTARO 2.023. It should run as SMTP Proxy, but it does not receive email. Email is still going to our secondary MX (the ASTARO is the primary MX). So I tried a telnet session on port 25 of the ASTARO firewall. But the telnet Client (either Putty or Linux) hangs up and says "No route to host".
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0 Jochen Schmitt over 23 years ago in reply to Jochen Schmitt

Problem solved! Ports 25 was unreachable because our ISP blocked the port on it's router. - ASTARO 2.023 works fine!
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