metadata.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
<pkgmetadata>
  <maintainer type="person">
    <email>grobian@gentoo.org</email>
  </maintainer>
  <maintainer type="project">
    <email>net-mail@gentoo.org</email>
    <name>Net-Mail</name>
  </maintainer>
  <use>
    <flag name="gpg">Enable support for <pkg>app-crypt/gpgme</pkg></flag>
    <flag name="pop">Enable support for POP3</flag>
	<flag name="notmuch">Enable support for <pkg>net-mail/notmuch</pkg></flag>
    <flag name="sidebar">Enable the sidebar feature</flag>
    <flag name="smime">Enable support for smime</flag>
    <flag name="smtp">Enable support for smtp</flag>
    <flag name="tokyocabinet">Enable tokyocabinet database backend for header
      caching</flag>
  </use>
  <upstream>
    <remote-id type="sourceforge">mutt</remote-id>
    <remote-id type="bitbucket">mutt/mutt</remote-id>
  </upstream>
</pkgmetadata>