Using dovecot-lda with sendmail

[Chris Szilagyi]

Hello:

I'm trying to get dovecot-lda to work with sendmail on a CentOS 7 
server.  I've tried following the instructions at the wiki, 
http://wiki2.dovecot.org/LDA/Sendmail, by adding the lines to 
/etc/mail/sendmail.mc, recompiling to /etc/mail/sendmail.cf and 
restarting sendmail -- the process for any sendmail config change. 
However it is still not working and in the maillog, it shows:

sendmail[31949]: sAEM4GTt031742: to=<user at localhost>, 
ctladdr=<test at localhost> (1000/1000), delay=00:08:31, xdelay=00:00:00, 
mailer=local, pri=210942, dsn=4.0.0, stat=Deferred: local mailer 
(/usr/libexec/dovecot/dovecot-lda) exited with EX_TEMPFAIL

I verified that SELinux is not interfering in this case.

I see talk of having sendmail run /usr/libexec/dovecot/dovecot-lda as 
other users, but I see that the file on my system is uid/gid as: root/root.

Is there a way to get this working?  Thanks much!

--
Chris