Para openSUSE Tumbleweed execute o seguinte como root:
zypper addrepo https://download.opensuse.org/repositories/home:jbaier_cz/openSUSE_Tumbleweed/home:jbaier_cz.repo
zypper refresh
zypper install perl-Encode-IMAPUTF7
Para 15.6 execute o seguinte como root:
zypper addrepo https://download.opensuse.org/repositories/home:jbaier_cz/15.6/home:jbaier_cz.repo
zypper refresh
zypper install perl-Encode-IMAPUTF7
Para 15.5 execute o seguinte como root:
zypper addrepo https://download.opensuse.org/repositories/home:jbaier_cz/15.5/home:jbaier_cz.repo
zypper refresh
zypper install perl-Encode-IMAPUTF7