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<h1 class="title"><a id="mail-headers" shape="rect" name="mail-headers"> </a>Creating headers</h1>
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<p>The <span class="structname">mail::Header</span> family of
classes provide a convenient way for creating E-mail headers.
The usual approach is to instantiate a <a class="link" href="header-list.html" title="mail::Header::list" shape="rect"><span class="citerefentry"><span class="refentrytitle">mail::Header::list</span>(3x)</span></a>
object, then use the “<span class="quote"><<</span>” operator repeatedly with any
combination of <a class="link" href="header-addresslist.html" title="mail::Header::addresslist" shape="rect"><span class="citerefentry"><span class="refentrytitle">mail::Header::addresslist</span>(3x)</span></a>,
<a class="link" href="header-encoded.html" title="mail::Header::encoded" shape="rect"><span class="citerefentry"><span class="refentrytitle">mail::Header::encoded</span>(3x)</span></a>,
<a class="link" href="header-mime.html" title="mail::Header::mime" shape="rect"><span class="citerefentry"><span class="refentrytitle">mail::Header::mime</span>(3x)</span></a> and
<a class="link" href="header-plain.html" title="mail::Header::plain" shape="rect"><span class="citerefentry"><span class="refentrytitle">mail::Header::plain</span>(3x)</span></a>
objects, which format different kinds of E-mail headers.
Finally, <a class="link" href="header-list.html" title="mail::Header::list" shape="rect"><span class="citerefentry"><span class="refentrytitle">mail::Header::list</span>(3x)</span></a>
<code class="literal">std::string</code> converts the headers
to text, and returns a single string containing
nicely-formatted headers.</p>
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