So...just switched on my working fone (been off since yesterday) and had this message too!!
I was curious so dropped him quick email asking how can I help him.
I can confirm now this "so called" accountant is real and you can google him. Must be a slow business for him?
His response was;
Thank you for the below, if you are filing tax returns each year you should be fine. They are looking for people who are not.
Best wishes
R******
Sent from my iPhone
Forgot to add his 1st response was an automatic email saying he is out of office till 29th. Guessing he is bored on holiday trawling aw, wanking and harassing escorts. Surely this guy can't be ok in his head?