title: Exchangelib library does not download email body in html format
body: <p>I have written code to download MS exchange server email body as html using exchangelib library but it has downloaded html content without &lt;> bracket </p>
  
  <pre><code>import datetime
  from exchangelib import ServiceAccount, Account, Configuration, DELEGATE
  from exchangelib import EWSDateTime, EWSTimeZone, EWSDate, 
  
  server = 'server url'
  username = 'username'
  password= 'password'
  credentials = ServiceAccount(username=username, password=password)
  config = Configuration(server=server, credentials=credentials)
  account = Account(
      primary_smtp_address='xyz@gmail.com',
      config=config, credentials=credentials,
      autodiscover=False,
      access_type=DELEGATE
  )
  
  # to fetch 6 days before emails
  tz = EWSTimeZone.localzone()
  end = tz.localize(EWSDateTime.combine(EWSDate.today(), datetime.time(0)))
  start = end - datetime.timedelta(days=6)
  for item in account.inbox.filter(datetime_received__range=(start, end)):
      emailbody = item.body
      with open('test.html', 'w', encoding='utf-8') as fdata:   
          fdata.write(emailbody)
  </code></pre>
  
  <p>Expected result:</p>
  
  <pre><code>&lt;html&gt;&lt;head&gt;....&lt;/head&gt;&lt;/html&gt;
  </code></pre>
  
  <p>Actual output:</p>
  
  <pre><code>html head .../head /html
  </code></pre>