===== mail =====

==== Quick Start ====

To set up an email server, we typically use Postfix for SMTP, Dovecot for POP3/IMAP, and mail utilities ("s-nail" package on RedHat Linux).

<code>
dnf install -y postfix dovecot s-nail
</code>

Edit the /etc/postfix/main.cp file:
<code>
inet_interfaces = all
home_mailbox = Maildir/  # To match the path for dovecot
</code>

Edit the /etc/dovecot/conf.d/10-auth.conf file:
<code>
disable_plaintext_auth = no
auth_mechanisms = plain login
login_trusted_networks = 0.0.0.0/0  # To allow plain login on non-tls connections
</code>

Edit the /etc/dovecot/conf.d/10-mail.conf file:
<code>
mail_location = maildir:~/Maildir
</code>

==== s-nail test ====

<code>
# Read email
s-nail -f ./Maildir/

# Send email
echo "Message body" | s-nail -s "Subject line" recipient@example.com
</code>

==== curl test ====

<code>
printf 'Subject: Test email from curl\n\nTest.' | curl --url 'smtp://ARTSLOPMDB03.ar.sspad.ng' --mail-from 'artest@localhost' --mail-rcpt 'artest@localhost' -T -
</code>