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Notes for the small jobs around real work

Practical guides for freelancers, developers, and people who spend their day fixing details, cleaning inputs, and making work move a little faster.

SPF, DKIM, and DMARC: Email Authentication Explained SPF, DKIM, and DMARC work together to prevent email spoofing and improve deliverability. Here is how each one works and how to check your current setup. Web & DNS What Is a DMARC Record? How to Check and Fix Yours Without a DMARC record, anyone can send email pretending to be from your domain. Here is what DMARC does, how to check your current policy, and how to fix it. Web & DNS DNS Records Explained: A, AAAA, MX, NS, TXT, CNAME and More DNS records control everything from where your website lives to whether your emails get delivered. Here is what each record type does and when you need to change it. Web & DNS