RT> Yes. I am running Warp 3 Connect, it has sendmail, but as far as I can
 RT> see there is no way to do much usefull with it, at least I have found
 RT> nothing that suggests how one might go about it, [...]

It's the standard UCB sendmail.  It's difficult to configure because of
sendmail.cf, but that's simply a design flaw of UCB sendmail.  The OS/2 port
does everything that can be done with UCB sendmail except for those rare
things that require sockets as standard input (such as BSMTP).

In particular, the usual "sendmail -bd -q30m" will run a sendmail daemon
listening on the SMTP port for incoming mail, and will deliver it according to 
the rewrite and mailer rules set up in sendmail.cf .  (OS/2 Warp's TCP/IP
Configuration utility will cause the sendmail daemon to be started in the
proper manner if you ask it to.)

 ¯ JdeBP ®

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