<sect1 id="outgoing-only">

    <sect1info>

      <authorgroup>

        <author>

          <firstname>Bill</firstname>

          <surname>Moran</surname>

          <contrib>Contributed by </contrib>

        </author>

      </authorgroup>

    </sect1info>

    <title>Setting up to send only</title>

    <para>There are many instances where you may only want to send

      mail through a relay. Some examples are:</para>

    <itemizedlist>

      <listitem>

    <para>Your computer is a desktop machine, but you'll want to use FreeBSD

      programs such as &man.send-pr.1;.  To do so, you should use your ISP's

      mail relay.</para>

      </listitem>

      <listitem>

    <para>The computer is a server that does not handle mail locally, but needs

      to pass off all mail to a relay for processing.</para>

      </listitem>

    </itemizedlist>

    <para>Just about any MTA is capable of filling this particular niche.

      Unfortunately, it can be very difficult to properly configure a full-

      featured MTA to properly handle just offloading mail.  Programs such

      as <application>sendmail</application> and

      <application>postfix</application> are largely overkill for this use.

    </para>

    <para>Additionally, if you're using a typical Internet access service, your

      agreement may forbid you from running a "mail server".</para>

    <para>The easiest way to fulfill these needs is to install the

      <filename role="package">mail/ssmtp</filename> port.  Execute the

      following commands as root:</para>

    <screen>&prompt.root; <userinput>cd /usr/ports/mail/ssmtp

&prompt.root; make install && make replace && make clean</userinput></screen>

    <para>Once installed, <filename role="package">mail/ssmtp</filename> can

      be configured with a four-line file in

      <filename>/usr/local/etc/ssmtp/ssmtp.conf</filename></para>

    <programlisting>

root=yourrealeamil@yourisp.com

mailhub=mail.yourisp.com

rewriteDomain=yourisp.com

hostname=_HOSTNAME_</programlisting>

    <para>Make sure you use your real email address for

      <literal>root=</literal>.  Enter your ISP's outgoing mail relay in place

      of <literal>mail.yourisp.com</literal> (some ISPs call this the

      "outgoing mail server" or "smtp server").</para>

    <para>Make sure you disable <application>sendmail</application> by entering

      <programlisting>sendmail_enable="NONE"</programlisting> in

      <filename>/etc/rc.conf</filename>.</para>

    <para><filename role="package">mail/ssmtp</filename> has some other

      options available.  See the example config file in

      <filename>/usr/local/etc/ssmtp</filename> or the manual page for

      <application>ssmtp</application>.</para>

    <para>Setting up <application>ssmtp</application> in this manner will allow any

      software on your computer that needs to send mail to function properly,

      while not violating your ISP's usage policy or allowing your computer to

      be hijacked for spamming.</para>

  </sect1>