mailx

Mailx is a Unix command line tool used for sending and receiving email messages. It is an enhanced version of the earlier mail command.

1. It allows users to send mail from the command line without the need for a graphical email client.
2. Mailx can send email to both local users on the same system and remote users on other systems.
3. It supports various email protocols such as SMTP, POP3, and IMAP.
4. Users can compose email messages directly in the command line interface using the mailx editor or by inputting text from a file.
5. It supports attachments, allowing users to send files along with their emails.
6. Mailx provides options for setting the subject, from address, and other email headers.
7. Users can also specify carbon copy (cc) and blind carbon copy (bcc) recipients.
8. It includes features like email forwarding, automatic replies, and message encryption.
9. Mailx can display and manage email in different folders, including the inbox, outbox, and sent items.
10. It can also be used in scripts for automated email notifications or other email-related tasks.