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Add a description on how to configure a local postfix to forward

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emails to the FreeBSD smtp servers.
This commit is contained in:
Mathieu Arnold 2019-03-28 15:28:01 +00:00
parent dada9efe52
commit 5c48b21e85
Notes: svn2git 2020-12-08 03:00:23 +00:00 
svn path=/head/; revision=52898
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en_US.ISO8859-1/articles/committers-guide/article.xml
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@ -2332,6 +2332,61 @@ freebsd-mfc-after = 2 weeks</programlisting>
</listitem>
</itemizedlist>
</note>
<sect4 xml:id="smtp-setup-local-mta">
<title>Using a Local MTA to Forward Emails to the
&os;.org SMTP Service</title>
<para>It is also possible to use a local
<acronym>MTA</acronym> to forward locally sent emails to
the &os;.org SMTP servers.</para>
<example xml:id="smtp-setup-local-postfix">
<title>Using <application>Postfix</application></title>
<para>To tell a local Postfix instance that anything from
<literal><replaceable>yourusername</replaceable>@FreeBSD.org</literal>
should be forwarded to the &os;.org servers, add this to
your <filename>main.cf</filename>:</para>
<programlisting>sender_dependent_relayhost_maps = hash:/usr/local/etc/postfix/relayhost_maps
smtp_sasl_auth_enable = yes
smtp_sasl_security_options = noanonymous
smtp_sasl_password_maps = hash:/usr/local/etc/postfix/sasl_passwd
smtp_use_tls = yes</programlisting>
<para>Create
<filename>/usr/local/etc/postfix/relayhost_maps</filename>
with the following content:</para>
<programlisting><replaceable>yourusername</replaceable>@FreeBSD.org [smtp.freebsd.org]:587</programlisting>
<para>Create
<filename>/usr/local/etc/postfix/sasl_passwd</filename>
with the following content:</para>
<programlisting>[smtp.freebsd.org]:587 <replaceable>yourusername</replaceable>:<replaceable>yourpassword</replaceable></programlisting>
<para>If the email server is used by other people, you
may want to prevent them from sending e-mails from your
address. To achieve this, add this to your
<filename>main.cf</filename>:</para>
<programlisting>smtpd_sender_login_maps = hash:/usr/local/etc/postfix/sender_login_maps
smtpd_sender_restrictions = reject_known_sender_login_mismatch</programlisting>
<para>Create
<filename>/usr/local/etc/postfix/sender_login_maps</filename>
with the following content:</para>
<programlisting><replaceable>yourusername</replaceable>@FreeBSD.org <replaceable>yourlocalusername</replaceable></programlisting>
<para>Where <replaceable>yourlocalusername</replaceable>
is the <acronym>SASL</acronym> username used to connect
to the local instance of
<application>Postfix</application>.</para>
</example>
</sect4>
</sect3>
</sect2>