What is MailSecure? A free, independent resource that gives Australian small and medium businesses clear, practical guidance on email and Microsoft 365 security. Everything here is written to be done by a capable business owner or their IT person — and if you'd rather have it audited and locked down for you, that's what SG1 Consulting does.
Start with a guide
Five focused guides that cover the security work that actually moves the needle for a small Microsoft 365 tenant.
Stop phishing & BEC in Microsoft 365
SPF, DKIM, DMARC, Safe Links, impersonation protection and training — the controls that stop the attacks that cost businesses the most.
The M365 security checklist
A real, actionable checklist: MFA, conditional access, admin roles, mail forwarding, guest access and audit logging.
MFA for business: how to turn it on
What multi-factor authentication is, how to enable it in Microsoft 365, and the gotchas that trip up small businesses.
Email security tools compared
An honest look at native Microsoft Defender vs third-party gateways vs managed security — and when each one fits.
Signs your email is compromised
Seven warning signs that a mailbox has been taken over — and exactly what to do first to contain it.
Get it audited & locked down
SG1 Consulting runs Microsoft 365 security audits, MFA rollouts and email hardening for Australian businesses.
Who this is for
Owners, office managers and IT generalists at Australian small and medium businesses running Microsoft 365 (Business Basic, Standard or Premium). If you administer email for a team and want to know what's genuinely worth doing — without wading through Microsoft's documentation — you're in the right place.
We keep it qualitative and practical. You won't find invented statistics or scare numbers here: just the controls, in the order that matters, explained so you can act on them.
Common questions
Is MailSecure free?
Yes. Every guide is free to read with no sign-up. It's brought to you by SG1 Consulting, an Australian firm that offers paid Microsoft 365 security work for businesses that would rather have it done for them.
Do I need to be technical to use this?
No. The guides are written in plain English and point to the exact settings in the Microsoft 365 and Entra admin centres. If a step needs Global Administrator access or a specific licence, we say so.
What if I want someone to just do it for me?
Then talk to SG1 Consulting. They audit your current setup, roll out MFA and conditional access, and harden email security so you don't have to work through it yourself.
Want your Microsoft 365 security checked and locked down properly?
That's what SG1 Consulting does — M365 security audits, MFA rollout and email hardening for Australian businesses.
Talk to SG1 →