There's nothing you can do to stop them arriving on your ISP's servers, msmop, the best you can do (without changing your email address) is to just delete them. Yes everyone else is receiving them as well.
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This poetic animation about monsters is illustrated in a Van Gogh painterly style
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Synology invites you to visit them at Insomnia on 26th – 29th August. Book your tickets now and visit Synology.