Grey Rocking by E-mail Very sweet and soft

A cat running on four paws

Don't touch the belly

I have set out terms for communication with my BPD mother, and part of these terms (which, again, I set out) is that I will send her one email a month, no later than the 10th. 

When I set these terms, I did not realize I'd actually have to write the bloody email. How do I grey-rock while still writing some sort of an "update" email. What kind of things do I write about?

Please help.