sendmail won't accept remote connections on 25

[masionas]

Hi Guys,

I am faced to strange problem. Regardless firewall started or no, I can't connect to the box outside via "telnet box.com 25" while "telnet localhost 25" works just fine. Where should I look else? Please, any ideas are much appreciated.

I use:

OS: FC3
Senmail: ESMTP Sendmail 8.13.1/8.13.1;

[IronWolf]

I am more of a Postfix person, but I believe that Sendmail is configured by default to only listen to localhost and not bind to any interfaces.

This link should get you started in the right direction (if nothing else help you with a few more google searches)

http://www.linuxhomenetworking.com/l...#_Toc109364458

[masionas]

Hi IronWolf,

Yep, thank you very much. That was it. I had to remove from the options Addr= 127.0.0.1 and it worked. Thanks again.

That is actually a feature to prevent ondefault servers being open relays to send the modern day plaque - spam

[IronWolf]

Originally Posted by Ergo12

That is actually a feature to prevent ondefault servers being open relays to send the modern day plaque - spam

And to minimize the numbers of services accepting connections that could potentially be exploited by security flaws.