Cursus electronicus[2][3] sive cursus publicus electronicus[4] est modus praecipuus quo homines ex anno 1990epistolas per interretecommunicant, protocoloSimple Mail Transfer Protocol (SMTP) annixi. Epistola hoc systemate missa litterae electronicae[5] sive electrogramma (-tis n.)[6][7] nominatur. Quae epistola in capite et corpore consistit. In capite rei titulus aliaeque res de scriptore ostenduntur, et in corpore litterae epistolae ipsius praebentur.
Alius modus quo epistolas, nuntia, notasque electronice communicari possunt est programmaturaprotocollo annixa, sicut Short Message Service (SMS) aut Multimedia Messaging Service (MMS); exempli causa: textus electronicus, fabulatio electronica, IM, vici, etc.
Inscriptio electrica[8][9] sive inscriptio cursualis electronica[10] nominatur cuiusque inscriptio cursualis, quae in cursu electrico adhibetur. Inscriptiones electronicae nunc formam habent "Iulius.Caesar@imperium.it", ubi "Iulius.Caesar" est pars localis (nomen usoris), @ est symbolum quod 'in, ad' significat, et "imperium.it" est nomen dominii.
Hughes, Lawrence. Internet e-mail Protocols, Standards and Implementation. Artech House Publishers. ISBN 0-89006-939-5.
Johnson, Kevin. Internet Email Protocols: A Developer's Guide. Addison-Wesley Professional. ISBN 0-201-43288-9.
Loshin, Pete. Essential Email Standards: RFCs and Protocols Made Practical. John Wiley & Sons ISBN 0-471-34597-0.
Partridge, Craig. 2008. The Technical Development of Internet Email. IEEE Annals of the History of Computing.IEEE Computer Society 30(2): 3–29. doi:10.1109/mahc.2008.32. ISSN 1934-1547.
Radicati, Sara. Electronic Mail: An Introduction to the X.400 Message Handling Standards. Mcgraw-Hill. ISBN 0-07-051104-7.
Rhoton, John. Programmer's Guide to Internet Mail: SMTP, POP, IMAP, and LDAP. Elsevier. ISBN 1-55558-212-5.
Rhoton, John. X.400 and SMTP: Battle of the E-mail Protocols. Elsevier. ISBN 1-55558-165-X.
Wood, David Wood. Programming Internet Mail. O'Reilly. ISBN 1-56592-479-7.