Online banking websites like to re-implement e-mail, so they can make it secure. Unfortunately, they're not very good at it. Here is an example, Bank of America adds '=' throughout the message, sometimes in the middle of words. It is clearly wrong, and makes the message harder to read.

I looked at the source of the web page, it is quoted-printable.

  Dear Valued Customer, 

  Thank you for your inquiry dated 8/17/10 regarding your W-8. Your concerns = 
  are very important to us and we will be happy to assist you. 

  Please be advised you will need to fill out a W-8 form so that we may have = 
  it on file. We have submitted a request to send you a W-8 form and will arr= 
  ive within five business days to the address we have on file for you. We ap= 
  ologize for the difficulties that you have experienced with your account.= 


  We value you as a customer and appreciate your business. If we may be of fu= 
  rther assistance, please contact us again by e-mail. Thank you for choosing= 
  Bank of America. 

  Sincerely, 

  Veronica Garcia 
  Bank of America 

  Get free e-mail or text message alerts when important activity occurs on yo= 
  ur account. Simply go to the Alerts tab in Online Banking and select the al= 
  ert messages you want to receive. Please note, alerts received as text mess= 
  ages on your mobile access device may incur a charge from your mobile acces= 
  s service provider.