mailin
There are 3 repositories under mailin topic.
hocgin/yourself-email
自建企业邮箱,构建你自己的域名邮箱,无需服务器 / Self built email / Build your own domain email without the need for a server
rohberg/rohberg.mailin
Listening to Mail and posting to Plone
iamtonmoy0/mailing-list-microservice
mailing list microservice