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Heirloom-mailx (Nail)
MIME-capable mail user agent for *nix systems

  • As of March 2006, nail has been integrated into the Heirloom project as mailx.

"Nail' is a MIME-capable mail user agent derived from Berkeley Mail 8.1. It is a free implementation of the 'mailx' command and has a similar interface. Nail can send and receive attachments and code and decode international character strings. With appropriate support, it can convert between different character encodings. When used with a UTF-8 terminal, it supports nearly all international languages. It also supports external converter programs. 'Nail' also supports SMTP to send messages directly to a remote server (so a local sendmail interface setup is not necessary). It supports POP3 to read messages on a remove server. Nail can read and delete individual messages, so POP3 accounts can be accessed almost like local mail folders.


User manpage included and available in HTML format from


Download version 12.4 (stable)
released on 28 July 2008



LicenseVerified byVerified onNotes
License:BSD AdClauseJanet Casey28 June 2004

Leaders and contributors

Gunnar Ritter Maintainer

Resources and communication

AudienceResource typeURI
Bug Tracking,Developer,

Software prerequisites

This entry (in part or in whole) was last reviewed on 13 February 2017.


Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.3 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the page “GNU Free Documentation License”.

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