Для openSUSE Tumbleweed запустите от имени root:
zypper addrepo https://download.opensuse.org/repositories/home:aredridel/openSUSE_Tumbleweed/home:aredridel.repo
zypper refresh
zypper install opensmtpd
Для openSUSE Factory ARM запустите от имени root:
zypper addrepo https://download.opensuse.org/repositories/home:aredridel/openSUSE_Factory_ARM/home:aredridel.repo
zypper refresh
zypper install opensmtpd
Для openSUSE Factory запустите от имени root:
zypper addrepo https://download.opensuse.org/repositories/home:aredridel/openSUSE_Factory/home:aredridel.repo
zypper refresh
zypper install opensmtpd