Hi DW..
and Idea that will work.. maybe..
I blocked my XABF on Email at the ISP server. I might get an Email but all I actually receive is a report with the blocked senders name and the subject. With no other information than the subject line, I have nothing to respond to. Nothing to get upset over.
The other thing you can do is change your ISP and change your email and you daughter's email addys and then do not contact him.
As to the phone calls, just get an new unpublished number.
If he cannot contact you, then you are taken one step further back from his drama.
All this is a REAL pain to do, but it is so nice to not get calls etc. anymore. Will there be times when you are sad because of no contact? Likely yes. You have been married to this man for quite awhile. I still get sad sometimes over both my x husband (who is deceased) and my XABF. I don't act on the sadness.. I know it will pass.