Sendmail has changed the default to now not listen for external mail. typicaly a line like the following will appear in sendmail.cf:
O DaemonPortOptions=Port=smtp,Addr=127.0.0.1, Name=MTA
Just comment this out.
Or to use the sendmail.mc file I usually add the follwoing line right before the first include
define(`_CF_DIR_', `/usr/pkg/share/sendmail/')dnl
(may also need to add a divert(0) before this). Then just comment out (using dnl) the DAEMON_OPTIONS line restricting input to address 127.0.0.1.

On Wed, 21 Jan 2004 15:10:47 +0000
bmcewen@comcast.net wrote:

> (latest version from pkgsrc) configured to accept email from outside