claws-mail from openSUSE:Backports:SLE-15-SP4:FactoryFork project

Select Your Operating System

For standard run the following as root:
zypper addrepo https://download.opensuse.org/repositories/openSUSE:Backports:SLE-15-SP4:FactoryFork/standard/openSUSE:Backports:SLE-15-SP4:FactoryFork.repo
zypper refresh
zypper install claws-mail