Sue Gray is reported to have copy of “significant” email

The Guardian is reporting:

A significant email from a senior official warning Martin Reynolds not to hold the summer party on 20 May has now been obtained by Gray, first reported by ITV.

Cabinet Office sources said she had already been given the authority to search email records – which are retained even from departing officials. A Whitehall source said Gray is nearing the end of her inquiry and publication next week was very likely.