I am finding it less and less credible that she continues to stay in Zimbabwe and write these regular letters. With the economic chaos, lack of regular electricity, and breakdown of government (including the post), how is she mailing or Emailing this material? More importantly, with her obviously negative view of the government, why hasn't Mugabe shut her down? He hasn't hesitated to silence or even kill those who disagree with him, and she has made herself a conspicuous target.
It seems more likely to me that she has multiple confidential contacts within Zimbabwe and is posting her Email communications from a less dangerous location. Since she has mentioned in her letters that she has a young child or children, I would HOPE that is what she is doing.
I just hope she is somewhere where Mugabe's hit men can't get to her . . .