How I got my business emails through spam filters with SPF, DKIM, and DMARC
SPF, DKIM, and DMARC are essential DNS-based authentication records that help prevent emails from being marked as spam. These protocols ensure that emails are legitimate and protect domains from being hijacked. Implementing all three is now necessary for effective email communication, especially for bulk senders.
- ▪SPF, DKIM, and DMARC help keep your emails out of junk folders and protect your domain.
- ▪Gmail and Yahoo enforced these authentication requirements for bulk senders in February 2024.
- ▪Microsoft followed suit in May 2025, making these protocols mandatory for Outlook.com users.
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Home & Office Home Home & Office Work Life Productivity How I got my business emails through spam filters with SPF, DKIM, and DMARC SPF, DKIM, and DMARC are three DNS-based authentication records that stop your emails from landing in spam and prevent criminals from spoofing your domain. Written by Ritoban Mukherjee, Contributing WriterContributing Writer May 27, 2026 at 11:00 a.m. PT Kerry Wan/ZDNETFollow ZDNET: Add us as a preferred source on Google.ZDNET key takeawaysThere are three DNS records that protect your domain and keep your emails out of junk.Running all three gives you complete coverage. They also protect your domain from being hijacked.If you send a lot of work emails and keep getting radio silence, your emails are very likely ending up in someone's spam folder.
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