For openSUSE Leap 15.1 ARM run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:lrupp/openSUSE_Leap_15.1_ARM/home:lrupp.repo
zypper refresh
zypper install sendmailanalyzer
For SLE 12 SP5 Backports run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:lrupp/SLE_12_SP5_Backports/home:lrupp.repo
zypper refresh
zypper install sendmailanalyzer
For 15.6 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:lrupp/15.6/home:lrupp.repo
zypper refresh
zypper install sendmailanalyzer
For 15.5 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:lrupp/15.5/home:lrupp.repo
zypper refresh
zypper install sendmailanalyzer