Real-world IT guides written from 25 years of hands-on experience managing Microsoft 365, email infrastructure, and cloud security for businesses across the UK. No filler, no theory — just what actually works.
SPF passes but emails still land in junk. DKIM is configured but something's still wrong. This guide walks through the real causes of email deliverability failures and exactly what to check.
After auditing hundreds of Microsoft 365 tenants, the same misconfigurations come up repeatedly. Here are the ones that matter most and how to fix them before they become a problem.
Email headers contain the full story of where an email came from, where it went, and why it might have failed. Here's how to read them without needing a computer science degree.
Conditional Access is one of the most powerful security tools in Microsoft 365, but most organisations either don't use it or have it configured badly. Here's what it does and where to start.
These guides are written by Salman Tariq, a Microsoft 365 and cloud infrastructure specialist with over 25 years of IT experience. Salman works as an MSP engineer managing 500+ client tenants and runs his own consultancy, Salman IT Services, helping SMBs across the UK with cloud migrations, email security, and Microsoft 365 administration. The tools on this site were built to solve real problems encountered in day-to-day IT work.