Internet

Email infrastructure

Terms

7 terms

  • DKIM

    DKIM is an email authentication method that signs messages with a domain key so receivers can verify the sender domain and detect tampering.

  • DMARC

    DMARC is an email authentication policy that aligns SPF and DKIM with the visible From domain and tells receivers how to handle failing mail.

  • IMAP

    IMAP is the Internet mail access protocol that lets clients read and organize messages kept on the server, keeping every device in sync.

  • Mail transfer agent

    A mail transfer agent is the email infrastructure server software that receives, queues, routes and relays messages between mail systems over SMTP.

  • POP3

    POP3 is the Post Office Protocol version 3, a simple email retrieval protocol that downloads messages from a mailbox server to one client device.

  • SMTP

    SMTP is the Internet standard protocol that email servers and clients use to submit, relay and deliver messages between mail systems across networks.

  • SPF

    SPF is an email authentication method in which a domain publishes in DNS which servers may send its mail, letting receivers detect forged senders.