OpenCart email issue

Team, Our opencart system is not sending emails. We have traced the issue to opencart possibly not being configured correctly. The system is not adding a recipient address to emails sent. Here's the raw output from the Exim logs when email sending is attempted: 2013-08-25 10:23:12 cwd=/home/otacom/public_html 4 args: /usr/sbin/sendmail -t -i 2013-08-25 10:23:12 cwd=/var/spool/exim 7 args: /usr/sbin/exim -t -oem -oi -f -E1VDO6q-0003m0-E3 2013-08-25 10:23:12 1VDO6q-0003m2-Eo otacom R=localuser T=local_delivery 2013-08-25 10:23:12 1VDO6q-0003m2-Eo Completed Please contact me if you can fix this now.