fixes #9118 - host mailer should not fail if no owner set for host
(cherry picked from commit 699433930fe80c905b757ae951a5aaa1952f0e9f)
Conflicts: test/unit/host_mailer_test.rb
fixes #9118 - host mailer should not fail if no owner set for host
(cherry picked from commit 699433930fe80c905b757ae951a5aaa1952f0e9f)
Conflicts:
test/unit/host_mailer_test.rb