Q. How do I reference a personal email?

The Harvard Guide lists guidance on referencing Email correspondence under the "Using electronic sources" heading:http://library.aru.ac.uk/referencing/harvard.htm

It first mentions that permission to quote/reference the correspondence should be sought from parties involved. To maintain the anonymity of your assignment, we would suggest speaking to your tutor/lecturer to ask for their guidance, as it may be possible that you could place the word "personal email address" (or something similar) instead of your name in the reference.

For more information on Harvard Referencing, please use the Anglia Ruskin Harvard Guide.