Module twisted.mail.relaymanager

Infrastructure for relaying mail through smart host

Today, internet e-mail has stopped being Peer-to-peer for many problems, spam (unsolicited bulk mail) among them. Instead, most nodes on the internet send all e-mail to a single computer, usually the ISP's though sometimes other schemes, such as SMTP-after-POP, are used. This computer is supposedly permanently up and traceable, and will do the work of figuring out MXs and connecting to them. This kind of configuration is usually termed "smart host", since the host we are connecting to is "smart" (and will find MXs and connect to them) rather then just accepting mail for a small set of domains.