RT not sending emails after upgrade

Hello,

I hope you are doing good.

After upgrading RT to 5.0.3 I can not sending emails.
It is being used the msmtp_wrapper. Everything worked properly before the upgrade.

P.S: Incoming emails are working fine.

Thank you

ISSUE FIXED: permissions changed.

chown www:www /opt/rt5/sbin/msmtp_wrapper
chmod 600  /opt/rt5/sbin/msmtp_wrapper
chmod +x  /opt/rt5/sbin/msmtp_wrapper

chown www:www /opt/rt5/etc/msmtp_wrapper.conf