Updated 30 Sept 2018.
I used 33 mail to try to cut down on spam and it has helped. See https://www.33mail.com/
I am being hit by spam in Chinese, which often disables my firstname.lastname@example.org 33mail account. I have now disabled email@example.com
However the sheer volume of spam I receive is too much for the free version of 33 mail.
On any of the 33mail addresses the spam is getting very large and so I am phasing use of it out. If spammed out this may give a 422 SMTP error to the sender.
firstname.lastname@example.org is becoming increasingly intermittent over the years, it has been down a week at least recently.
Try email@example.com which should get to me.
Twitter is @CathyCathyFox .
These are all part of the hazards of taking on the paedophiles and their networks.