Use java to convert e-mail to its original format

I have been trying to create an object of mimemessage type using JavaMail API and get its original representation, but I have failed The only thing I can get is the original representation of the email content, but not the title, subject or recipient Any suggestion I'm interested in, any Java library, can help me create an email object and then get its original representation The original representation should look like this:

received: from imta14.emeryville.ca.mail.myisp.net ([nn.nn.30.46])
by alnrmxc19.isp.net (alnrmxc19) with ESMTP
id <20080930215116a19007q9u6e>; Tue,30 Sep 2008 21:51:16 +0000
X-Originating-IP: [nn.nn.30.46]
Received: from libertatea.go ([nn.nn.161.160])
by IMTA14.mail.isp.net with isp
id M9qy1a00V3TwUto0E9rELB; Tue,30 Sep 2008 21:51:15 +0000
X-Authority-Analysis: v=1.0 c=1 a=DZlucjOqAY8A:10 a=mnGO974OAAAA:8
a=9MJFf195B83LjESASTQA:9 a=Lm7NQ261g8eJHgoaELoA:7
a=7Narey355jFQWZRww2lj1r9-lCkA:4 a=8COHQAuY8ZYA:10 a=zEVpGHA-kecA:10
a=37WNUvjkh6kA:10
Received: by libertatea.go id hm1nfa0di0sn for <xxx@myisp.net>; Sun,30 Sep 2018 09:36:35
+0300 (envelope-from <Hometown.Quotes_ary@mousemegadot.com>)
Message-ID: <79864795@mousemegadot.com>
Date: Sun,30 Sep 2018 09:36:35 +0300
From: "Hometown Quotes" <Hometown.Quotes_ary@mousemegadot.com>
To: dummy@myisp.net
Subject: Find Affordable Auto Insurance Today
MIME-Version: 1.0
X-UID: 79864795.modhnrfo.jhhnk.1
Content-Type: multipart/alternative; boundary="0-1411506895-1200484069=:66653"
Content-@R_398_301@: 8bit
X-PMFLAGS: 570966272 9 1 PE71PYHD.CNM 
X-UC-Weight: [# ] 51
X-CC-Diagnostic: Test 'LazyHTML Tolerant' (51)

--0-1411506895-1200484069=:66653
Content-Type: text/plain; charset=iso-8859-1
Content-@R_398_301@: 8bit

--0-1411506895-1200484069=:66653
Content-@R_398_301@: 8bit
Content-Type: text/html; charset=iso-8859-1; DelSp="Yes"; format="flowed"

Solution

What you are looking for is mimemessag#writeto, which outputs messages as RFC 822 format streams

Example of converting mimemessage to string using writeto

MimeMessage mimeMessage;

// mimeMessage get assigned

ByteArrayOutputStream output = new ByteArrayOutputStream();
mimeMessage.writeTo(output);
String rawEmail = output.toString();