Subject: Re: mail spams
To: None <email@example.com>
From: James E. Bernard <jbernard@tater.Mines.EDU>
Date: 11/27/1996 16:27:10
>> Could this be a good application of the inetd functionality that mrg
>> recently added? i.e. inetd checks the IP address (or domain) of the
>> machine trying to connect to the SMTP port, and refuses the connection
>> if it matches a known spam engine.
>You would have to make inetd launch sendmail, then. In the default
>configuration, sendmail is running all the time and receiving the
>connections by itself. Starting sendmail from inetd could cause a great
>performance loss on busy mail servers...
Not anymore (as of 8.8.0): sendmail can be configured to use
libwrap--just add -DTCPWRAPPERS to CFLAGS and -lwrap to LDFLAGS.