fixes CNVS-1521
test plan
- send affected messages from a host that uses http
- ensure that messages use http for links
- send affected messages from a host that uses https
- ensure that messages use https for links
Change-Id: Ie1fca1e92572c004d58e051bf190fed2ec145191
Reviewed-on: https://gerrit.instructure.com/17834
Tested-by: Jenkins <jenkins@instructure.com>
Reviewed-by: Zach Pendleton <zachp@instructure.com>
QA-Review: Marc LeGendre <marc@instructure.com>
Joel Hough