24.6.1. Securing Communication

24.6.1. Securing Communication

Popular MUAs included with Red Hat Enterprise Linux, such as Ximian Evolution and mutt offer SSL-encrypted email sessions.

Like any other service that flows over a network unencrypted, important email information, such as usernames, passwords, and entire messages, may be intercepted and viewed by users on the network. Additionally, since the standard POP and IMAP protocols pass authentication information unencrypted, it is possible for an attacker to gain access to user accounts by collecting usernames and passwords as they are passed over the network.


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