Delivermail

The ancestor of sendmail, delivermail is a mail transport agent that used the FTP protocol on the early ARPANET to transmit e-mail to the recipient.

In 1979, when delivermail was first shipped with 4.0BSD and 4.1BSD, the ARPANET was still using NCP as its network protocol. When the ARPANET switched to TCP/IP in 1982, the road was paved for MTAs that no longer relied on FTP for delivery. The new protocol for sending mail was SMTP, and after DNS replaced hosts files, delivermail evolved into sendmail.

References

Email servers

Open source	Apache James Courier Mail Server Cyrus IMAP server Dovecot Exim Kolab OpenSMTPD Postfix Qmail Sendmail (dual-licensed) Zarafa Zentyal Zimbra

Proprietary	Axigen CommuniGate Pro Eudora Internet Mail Server Gordano Messaging Suite hMailServer IBM/Lotus Notes/Domino IceWarp Mail Server Internet Information Services Ipswitch IMail Server Kerio Connect Microsoft Exchange Server Novell GroupWise Unison (collaboration software)

Discontinued	Delivermail Hula

Related technologies	Extended SMTP IMAP POP Push-IMAP SMAP SMTP UUCP

Related articles	Email Unicode and email List of mail servers Comparison of mail servers

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