<header>Reject unknown local users</header>

<center><tt>local_recipient_maps</tt></center>
<hr>

This parameter specifies optional lookup tables with all users that are local
with respect to <tt>$mydestination</tt> (&quot;what domains to receive mail
for&quot;)and <tt>$inet_interfaces</tt> (&quot;network interfaces for receiving
mail&quot;) . If this parameter is defined, then the SMTP server will reject
mail for unknown local users.

<p>

Put tables with bare usernames such as <tt>unix:passwd.byname</tt> and alias
maps. Example: <tt>$alias_maps unix:passwd.byname</tt>.

<p>

Beware: if the Postfix SMTP server runs chrooted, you may have to
copy the passwd database into the jail. This is system dependent.

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