lder is an abstract class that represents a folder for mail
 messages.</div>
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<td class="colOne"><a href="../../jakarta/mail/class-use/Header.html#jakarta.mail">Header</a>
<div class="block">The Header class stores a name/value pair to represent headers.</div>
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<td class="colOne"><a href="../../jakarta/mail/class-use/Message.html#jakarta.mail">Message</a>
<div class="block">This class models an email message.</div>
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