Just remember . . .
 
 
Remember all of your communications 
- Are "on the record" for future reference, even litigation
- Regardless of the message or the medium
 
 
So, be sure to 
- Make them all clear, concise and to the point
 
And above all
- Make them all polite and business-like
 
Just remember
- What may seem reasonable when you write it today
- Looks and sounds very different when read out in court months later !