Installer les paquets Nécessaires

root@raspberrypi32G#apt-get update && apt-get upgrade
root@raspberrypi32G#apt-get install sendmail

Sauvegarde du fichier source

root@raspberrypi32G# cp /etc/mail/sendmail.mc /etc/mail/sendmail.mc.sauvegarde

Editer le fichier sendmail.mc

Effacer toute les lignes et ajouter les lignes suivantes

root@raspberrypi32G#vi /etc/mail/sendmail.mc

#-----------------------------------------------------------------------------
divert(0)dnl
#
# Copyright (c) 1998-2005 Richard Nelson. All Rights Reserved.
#
# This file is used to configure Sendmail for use with Debian systems.
#
include(`/usr/share/sendmail/cf/m4/cf.m4')dnl
OSTYPE(`linux')dnl
define(`SMTP_MAILER_FLAGS', `e9')dnl
FEATURE(redirect)dnl
FEATURE(nocanonify)dnl
FEATURE(always_add_domain)dnl
FEATURE(local_procmail)dnl
GENERICS_DOMAIN(localhost.localdomain localhost localhost)
FEATURE(genericstable)
FEATURE(masquerade_envelope)dnl
define(`confCF_VERSION',`cf àede - 22/05/98')dnl
define(`confCON_EXPENSIVE',`True')dnl
define(`confME_TOO',`True')dnl
define(`confCOPY_ERRORS_TO',`Postmaster')dnl
define(`confDEF_CHAR_SET',`ISO-8859-1')dnl
define(`confMIME_FORMAT_ERRORS',`True')dnl
define(`SMART_HOST',`smtp8:[smtp.free.fr]')dnl
define(`confTO_QUEUEWARN',`24h')
MAILER(local)
MAILER(smtp)

root@raspberrypi32G# m4 sendmail.mc > /etc/mail/sendmail.cf

Configurer « genericstable »

root@raspberrypi32G# touch genericstable
root@raspberrypi32G# touch genericstable.db

root@raspberrypi32G#vi genericstable
pi : chris@free.fr chris@en-images.info

root@raspberrypi32G # sendmail -bi -oA/etc/mail/genericstable

Changer les droits sur les répertoires des spool

root@raspberrypi32G # chown -R root:smmsp /var/spool
root@raspberrypi32G # chmod 770 /var/spool
root@raspberrypi32G # chmod -R 0770 /var/spool/mqueue-client/

Configurer « aliases »

root@raspberrypi32G# vi aliases
pi : chris

root@raspberrypi32G # newaliases

Correction message d’erreur suivant dans le fichier log « mail.log »
SYSERR(root): hash map "Alias0": unsafe map file /etc/mail/aliases.db: Permission denied

root@raspberrypi32G # rm /etc/mail/aliases.db
root@raspberrypi32G # touch /etc/mail/aliases.db
root@raspberrypi32G # newaliases

Relancer le serveur « Sendmail » MTA

root@raspberrypi32G # /etc/init.d/sendmail restart

Envoyer un mail en ligne de commande

root@raspberrypi32G# apt install mailutils
root@raspberrypi32G# echo "Mon message $(date)" | mail -s "Test envoi de mail depuis $HOST" chris@free.fr

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