I am getting unusual emails i.e.  Hello, Fog. A new message has been posted to the 'Crypto trading from NZ' topic. Click the link below to read it:

Hello, Fog. A new message has been posted to the 'Read small Data Matrix ECC200 codes  specifically on Apple parts' topic. Click the link below to read it:

Probably a simple explanation but have never had these in the past and I haven't changed anything. Can someone help please.