title: Regex to Remove Name, Address, Designation from an email text Python
body: <p>I have a sample text of an email like this. I want to keep only the body of the text and remove names, address, designation, company name, email address from the text. So, to be clear, I only want the content of each mails between the From Dear/Hi/Hello to  Sincerely/Regards/Thanks. How to do this efficiently using a regex or some other way</p>
  
  <pre><code>Subject: [EXTERNAL] RE: QUERY regarding supplement 73
  
  Hi Roger,
  
  Yes, an extension until June 22, 2018 is acceptable.
  
  Regards, 
  Loren
  
  
  Subject: [EXTERNAL] RE: QUERY regarding supplement 73
  
  Dear Loren, 
  We had initial discussion with the ABC team us know if you would be able to extend the response due date to June 22, 2018.
  
  
  Best Regards,
  Mr. Roger
  Global Director
  roger@abc.com
  78 Ford st.
  
  
  
  
  
  Subject: [EXTERNAL] RE: QUERY regarding supplement 73
  
  responding by June 15, 2018.check email for updates
  
  Hello,
  John Doe 
  Senior Director
  john.doe@pqr.com
  
  
  
  
  Subject: [EXTERNAL] RE: QUERY regarding supplement 73
  
  
  Please refer to your January 12, 2018 data containing labeling supplements to add text regarding this
  symptom. We are currently reviewing your supplements and have
  made additional edits to your label.
  
  Feel free to contact me with any questions.
  
  Warm Regards,
  Mr. Roger
  Global Director
  roger@abc.com
  78 Ford st.
  
  
  Center for Research
  Office of New Discoveries
  Food and Drug Administration 
  Loren@mno.com
  </code></pre>
  
  <p>From this text I only want as OUTPUT :</p>
  
  <pre><code>    Subject: [EXTERNAL] RE: QUERY regarding supplement 73
  Yes, an extension until June 22, 2018 is acceptable.
  We had initial discussion with the ABC team us know if you would be able to extend the response due date to June 22, 2018.
  responding by June 15, 2018.check email for updates
  Please refer to your January 12, 2018 data containing labeling supplements to add text regarding this
      symptom. We are currently reviewing your supplements and have
      made additional edits to your label. 
      Feel free to contact me with any questions.
  </code></pre>