title: Python Email Send to Multiple Recipients
body: <p>My code doesn't have a problem. In my list of recipients, I have 10 emails adress. 
  Do you know to send an email to every singles address email of this list? </p>
  
  <p>Message error:</p>
  
  <p>pywintypes.com_error: (-2147352567, 'Exception occurred.', (4096, 'Microsoft Out
  look', 'Outlook does not recognize one or more names. ', None, 0, -2147467259),
  None)</p>
  
  <pre><code>import win32com.client as win32
  import pandas as pd
  
  xls = pd.ExcelFile(path)
  dfs = xls.parse(sheet_name="details", header = None)
  recipients = dfs[21]
  
  outlook = win32.Dispatch('outlook.application')
  mail = outlook.CreateItem(0)
  mail.To = recipients
  mail.Subject = 'Automatic Email '
  mail.Body = 'body'
  mail.HTMLBody = 'Hello, this is a test &lt;/h2&gt;'
  mail.Send()
  </code></pre>