exim from openSUSE:Backports:SLE-12-SP4 project
Seleziona il sistema operativo
Aggiungi il repository e installa manualmente
Per standard eseguire quanto segue come root:
zypper addrepo https://download.opensuse.org/repositories/openSUSE:Backports:SLE-12-SP4/standard/openSUSE:Backports:SLE-12-SP4.repo zypper refresh zypper install exim