What term describes messages sent electronically from one author to one or more recipients?

The term "emails" specifically refers to messages that are sent electronically via the internet from one author to one or more recipients. Emails usually include the use of an email address and can contain text, attachments, and hyperlinks, making it a versatile form of communication for both personal and professional contexts.

In contrast, while text messages also involve electronic communication, they are typically limited to mobile devices and have different characteristics such as character limits. Instant messages are generally real-time communications between users on the same platform, which can also differ from the structured nature of email. Lastly, voicemails relate to recorded audio messages, not text-based communication, and are delivered through voice mail systems rather than as written messages. Thus, "emails" is the most accurate term for describing this type of written electronic communication.