Yahoo users have been complaining for the last few days that their mail accounts had been filled up by spam. For few days, they have seen surge in email spam. It goes without saying that Gmail’s spam filtering is now best among the other mail services, but Yahoo mail was not poor either. Unfortunately, Yahoo users are getting lot of spam mails for the last couple of days. The most funny thing is, Yahoo has been certified by DMARC (Domain-based Message Authentication, Reporting & Conformance). This means, in future Yahoo services are supposed to be heavily protected against phishing attacks and spam.