improve your spam filter.
Lately the yahoo spam filter has been almost non-existent. I have flagged the same emails as spam for the last two weeks and the very next day I will get two or three more. Almost all of my my spam was filtered and now hardly any of it is. Your spam filter does not work.
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Please make sure you are marking these emails as spam instead of just deleting. Also, if they are newsletters please make sure you unsubscribe from these. We will also share this with our anti-spam team. Keep in mind spammers use domains that are very very similar so keep marking as spam.