332 practical guides to website speed, SEO, email deliverability, DNS, security and automation, with fixes you can copy and paste.
Emails landing in spam? Learn the four real causes: missing authentication, poor sender reputation, risky content and dirty lists, plus the fixes for each one.
Learn to read DMARC aggregate (rua) reports: what each XML field means, how to sort sources into legitimate, misconfigured and spoofed, and what to fix first.
Outlook enforces SPF, DKIM and DMARC for bulk senders and Gmail now rejects non-compliant mail. What email deliverability UK senders need in place now.
NCSC retired Mail Check on 31 March 2026 as phishing still hits 38% of UK businesses. How to keep DMARC monitored and protect email deliverability in the UK.
How DNS blocklists work, which IP or domain to check, what return codes like 127.0.0.2 mean, and why shared hosting IPs get listed when you did nothing wrong.
IPv6 for small business websites: how many users have it, whether you need an AAAA record, hosting and CDN support, IPv6 email PTR and SPF rules, and testing.
Emails landing in Gmail's Promotions tab? Learn why Gmail sorts mail this way, why it isn't spam, and practical steps to reach Primary more often.
Warm up a new email domain or IP by authenticating first, starting with engaged contacts and raising volume gradually. A practical schedule and checklist.
How to check if your domain or IP is blacklisted, what a listing means, how to request delisting for free, and how to stop it happening again.
How to use Google Postmaster Tools: verify your domain, read the compliance, spam rate and delivery error dashboards, and act on what they show in 2026.
Email bounce codes explained: what 550, 5.1.1, 5.7.x and 4xx soft bounces mean, which are your fault, and how to fix each one. With Gmail and Microsoft codes.
DMARC fail means neither SPF nor DKIM passed for a domain matching your From address. Learn how to read the headers, find the cause and fix it safely.
Popular topics
Free website audit
Speed, SEO, DNS, email (SPF/DKIM/DMARC) and security in one scan, with a prioritised fix list.
Make It Flow assistant
Tools, guides and AI automation
Hi! I can find the right free tool, explain an audit result, or tell you how Make It Flow can automate any part of your business. What do you need?
Book a free 15-minute call
Pick a time that suits you. Times are shown in your time zone ().
A Make It Flow agent will confirm the call by email within 24 hours.
AI answers can be wrong. Chats are stored so the team can follow up. Privacy