dkimproxy
DKIMproxy is an SMTP-proxy that implements the DKIM and DomainKeys standards
DKIMproxy is an SMTP-proxy that signs and/or verifies emails, using the Mail::DKIM module. It is designed for Postfix, but should work with any mail server. It comprises two separate proxies, an "outbound" proxy for signing outgoing email, and an "inbound" proxy for verifying signatures of incoming email. With Postfix, the proxies can operate as either Before-Queue or After-Queue content filters.
Для openSUSE Leap 16.0 нет официального пакетаДистрибутивы
openSUSE Tumbleweed
openSUSE Leap 16.0
openSUSE Leap 15.6
SLFO 1.2
openSUSE Backports for SLE 15 SP7
openSUSE Backports for SLE 15 SP4
SUSE SLE-15-SP1
SUSE SLE-12-SP5
Неподдерживаемые дистрибутивы
Следующие дистрибутивы не имеют официальной поддержки. Используйте их пакеты на свой страх и риск.