Abstract
Three protocols are involved in email communication: SMTP (Simple Mail Transfer Protocol) for sending messages and POP (Post Office Protocol) and IMAP (Internet Message Access Protocol) for receiving messages. The latter two protocols are often represented with their current version numbers: POP3 and IMAP4. If the communication is encrypted, using SSL/TLS, for example, the names used are SMTPS, POP3S, and IMAPS, where the added S means Secure.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Author information
Authors and Affiliations
Rights and permissions
Copyright information
© 2021 The Author(s), under exclusive license to APress Media, LLC, part of Springer Nature
About this chapter
Cite this chapter
La Lau, R. (2021). Email Basics. In: Practical Internet Server Configuration. Apress, Berkeley, CA. https://doi.org/10.1007/978-1-4842-6960-2_12
Download citation
DOI: https://doi.org/10.1007/978-1-4842-6960-2_12
Published:
Publisher Name: Apress, Berkeley, CA
Print ISBN: 978-1-4842-6959-6
Online ISBN: 978-1-4842-6960-2
eBook Packages: Professional and Applied ComputingProfessional and Applied Computing (R0)Apress Access Books