需要 openSUSE Tumbleweed RISCV ，用 root 執行：
zypper addrepo https://download.opensuse.org/repositories/server:mail/openSUSE_Tumbleweed_RISCV/server:mail.repo
zypper refresh
zypper install procmail
需要 openSUSE Tumbleweed ，用 root 執行：
zypper addrepo https://download.opensuse.org/repositories/server:mail/openSUSE_Tumbleweed/server:mail.repo
zypper refresh
zypper install procmail
需要 openSUSE Factory zSystems ，用 root 執行：
zypper addrepo https://download.opensuse.org/repositories/server:mail/openSUSE_Factory_zSystems/server:mail.repo
zypper refresh
zypper install procmail
需要 openSUSE Factory PowerPC ，用 root 執行：
zypper addrepo https://download.opensuse.org/repositories/server:mail/openSUSE_Factory_PowerPC/server:mail.repo
zypper refresh
zypper install procmail