[andrewfromx]

you just need a filter to mark these messages as read and skip your inbox. out of sight out of mind. There's no way to stop spam but there is always a way to not see it.

[andyexeter]

There is unfortunately a risk of false positives with this approach - I might want to use the <surname><forename> variation myself for certain things and I should be able to do that.

[andrewfromx]

then you have to get creative with the filter. Filter on the to and the subject line and content etc.