Para openSUSE Tumbleweed execute o seguinte como root:
zypper addrepo https://download.opensuse.org/repositories/server:mail/openSUSE_Tumbleweed/server:mail.repo
zypper refresh
zypper install amavisd-milter
Para openSUSE Factory zSystems execute o seguinte como root:
zypper addrepo https://download.opensuse.org/repositories/server:mail/openSUSE_Factory_zSystems/server:mail.repo
zypper refresh
zypper install amavisd-milter
Para openSUSE Factory PowerPC execute o seguinte como root:
zypper addrepo https://download.opensuse.org/repositories/server:mail/openSUSE_Factory_PowerPC/server:mail.repo
zypper refresh
zypper install amavisd-milter
Para 15.6 execute o seguinte como root:
zypper addrepo https://download.opensuse.org/repositories/server:mail/15.6/server:mail.repo
zypper refresh
zypper install amavisd-milter
Para 15.5 execute o seguinte como root:
zypper addrepo https://download.opensuse.org/repositories/server:mail/15.5/server:mail.repo
zypper refresh
zypper install amavisd-milter