SPF, DKIM and DMARC Explained: Stop Emails Going to Spam
What SPF, DKIM and DMARC do, the sender requirements Gmail, Yahoo and Microsoft now enforce, example DNS records, a safe rollout plan and how to check your own domain for free.
Practical security for small businesses, from your website and email to your automations.
Attackers rarely target a small business by name. They scan for the easy openings: a reused password with no second factor, a website plugin nobody updated, a domain anyone can send fake email from, or an API key pasted into a shared document. Closing those openings is most of the work.
The short answer
Most small businesses need the basics done well: multi-factor login on every account, email authentication (SPF, DKIM and DMARC), an updated and properly configured website, tested backups, and API keys and passwords that automations handle safely. WikiAI checks each of these, explains what it finds, and fixes the gaps.
Security tends to grow by accident. Staff sign up for tools with personal passwords, old employees keep access, the website runs on outdated software, and new automations get admin keys because that was quickest. Nobody owns the whole picture, so nobody notices the gaps until a fake invoice goes out or an account is locked.
We start with a review of your accounts, website, email setup and automations, with your written permission and using non-intrusive checks. You get a plain-English list of what we found, ranked by risk. Then we fix it with you: turning on multi-factor login, setting up email authentication, hardening the website, and moving automation credentials to least-privilege keys in secure storage.
Every project follows the same four steps. You get a written estimate and timeline after the strategy call, because how long it takes depends on scope.
We look at your current setup, goals and bottlenecks, and agree what success looks like before anything is built.
We choose the right tools and approach for your business and budget, and agree in writing what will and will not be delivered.
We build and test, connect everything to your existing tools, and launch in stages so problems show up early rather than in front of customers.
We track how it performs, fix what breaks and improve what works, with a person reviewing anything that needs judgment.
SPF, DKIM and DMARC so criminals can’t easily send invoices or password resets that appear to come from you.
Multi-factor login, fewer admins and shared files checked, so one stolen password doesn’t open everything.
Each workflow gets only the access it needs, keys are stored securely, and webhooks reject requests that aren’t yours.
Turn on multi-factor login for your email and admin accounts today, then book a security review so we can check your domain’s email authentication, website and automations.
No. Our review uses non-intrusive checks of your configuration, with your written permission. If you need a formal penetration test report, for a client or compliance requirement, tell us at the start so the right test can be scoped.
For a full review, yes: usually admin read access to your email platform, website and automation tools. We use our own named accounts, never shared passwords, and you can remove our access when the work is done.
Yes. We give each workflow its own least-privilege key, store credentials in the platform’s secret store rather than in the workflow, authenticate webhooks, and limit what an AI agent is allowed to do without a person approving it.
No one honestly can. Closing the common gaps makes an attack much less likely and much less damaging, and a tested backup means you can recover if something does happen.
What SPF, DKIM and DMARC do, the sender requirements Gmail, Yahoo and Microsoft now enforce, example DNS records, a safe rollout plan and how to check your own domain for free.
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