Try Mailwasher, it's free a quite good, although it made a mistake today and deleted emails it shouldn't have. Trouble is these spammers change addresses so at the moment it's going to be a continuing problem - until they make it illegal.
What is ransomware and how do I protect my PC from WannaCry?
What I learned from my mentor, Oscar-winning VFX supervisor Phil Tippett
Siri vs Google Assistant
Synology invites you to visit them at Insomnia on 26th – 29th August. Book your tickets now and visit Synology.