We reallly don't know if she was or was not appropriately warned and cautioned about her email style.  However, most people know this is considered unpleasant and unprofessional.  Perhaps this was a straw that broke the camel's back and she was fired for a variety of reasons including email.  OR  Maybe the bosses wife just doesn't like her because she is kinda cute and is 15 years younger than the wife herself.   And the wife along with her best friend and fellow harpie the Office Manager plotted against this innocent young woman out of meaness and jealosy?  New Zealand is a very long way away

I worked in an office where a women was sending out letters but when the supervisor put in the basket a letter she wanted mailed she found all the enevolpes the women wrote had every charecter in the address a different color.     Plus she doted all the i's with a red heart the supervisor took them out and made her do them over.  The women who wrote them was so insulted.   Can you imagine working in an office and not knowing the minimum way how to address a business envelope