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# Mutt-i, GnuPG and PGP Howto

## Andrés Seco AndresSH@ctv.es and J.Horacio M.G. homega@ciberia.es

v1.2, February 2000

This document briefly explains how to configure Mutt-i, PGP and GnuPG in its diferents versions (2.6.x, 5.x and GnuPG), noting the common problems that can occur while sending signed or encrypted mail to be read by mail clients not PGP/MIME compliants as defined in RFC2015 and in other operating systems. It also includes an example of procmail configuration to send the public keys automatically to received e-mails asking for it, as a key servers does.

## 1. Introduction

## 2. Copyright and discharge of responsability

## 3. Sending mail to and receiving mail from the internet

## 4. Mutt configuration

## 5. PGP and GnuPG

- 5.1 PGP2
- 5.2 PGP5
- 5.3 GnuPG

## 6. PGP and Mutt integration

- 6.1 Optional configuration files
- 6.2 General Configuration Variables
- 6.3 PGP2 configuration variables
- 6.4 PGP5 configuration variables
- 6.5 GnuPG configuration variables
- 6.6 Mixed configuration variables

## 7. Interesting Macros for Mutt

- 7.1 Signing on the message body without using PGP/MIME with PGP5
- 7.2 Signing on the message body without using PGP/MIME with GnuPG
- 7.3 Modifying the alias file and reloading it
- 7.4 More macro examples

## 8. Procmail notes and tips

- 8.1 Configuring Procmail to send automatically your public keys
- 8.2 Verify and decrypt automatically messages without PGP/MIME
- 8.3 Change MIME type for messages with keys inside without PGP/MIME

## 9. Interchanging signed/encrypted messages with different MUAs and platforms

## 10. Programs and versions used

## 11. More information

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