Description=The Hermes SMTP/POP3 server has three basic components: a POP3 Server, an SMTP Server and an SMTP Agent. The POP3 Server listens on TCP port 110 and accepts connections from e-mail clients wanting to read user mail. The client asks the server for mail, and the server sends it to the client. This is how most people read their e-mail, by fetching it from a server using the POP3 protocol. The SMTP Server listens on TCP port 25 for connections from either user e-mail clients wanting to send mail, or other SMTP servers wanting to deliver mail. The server accepts connections and accepts mail for delivery. The server then figures out weather the mail if received belongs to a local user or some other user. If the mail is for a local user, the SMTP server delivers it to the local userÆs mailbox. If the mail is for a foreign (not local to the server) user, the SMTP server queues the mail for the SMTP Agent to deliver at a later time. Hermes also supports mailing lists and relay block. (Open Source)
