Date: Thu, 18 May 2000 10:41:42 -0400 (EDT) From: Satya Devireddy <satya@devireddy.com> To: Chuck Barnett <cbarnett@netcabtec.com> Cc: "'questions@freebsd.org'" <questions@freebsd.org> Subject: Re: ipfw rc.firewall Message-ID: <Pine.BSF.4.21.0005181035330.1805-100000@daffy.dspsoft.com> In-Reply-To: <E5377B025A5AD311914900A0C9EBC22901D70B@MUNNIN>
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From your subject line I assume you are trying to setup a firewall ? If you setup a firewall and block SMTP port, then no one can connect to it. So, you will not receive email from the outside to your box. I think you are trying to plug the "Open Mail Relay" in your email server. If so depending on which email server you are using, you need to configure that to accept email only to local domains (and not relay). I am not sure what the default email server is in bsd now sendmail or postfix. You need to check the documentation of the correct one. I use qmail for which configuration is different. Just because someone can telnet to SMTP port does not mean that it is open. The email server should look at the addresses and reject the ones that do not belong to your domain(s). hope this helps, -Satya On Thu, 18 May 2000, Chuck Barnett wrote: > Hello, I have a problem. My email server is "open" you can telnet to port > 25 and send email from whom ever. How do I tell my computer not to accecpt > connections over port 25 for sending messages. > > chuck To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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