⏰ Support Available: Mon-Fri 4:00pm-6:00am | Weekends 24/7
Enterprise-grade Microsoft 365 & Identity expertise, for your business
Hamilton365 is Jamie Hamilton, a Brisbane Microsoft specialist with 25+ years in enterprise IT, including a decade running Identity and messaging infrastructure for 200,000+ users across Queensland's education sector. You get that senior, enterprise-grade capability applied directly to your business.
Managed Microsoft 365 and IT support, tenant-to-tenant migrations, Identity and email security, and email investigation & eDiscovery, delivered properly, with after-hours and weekend availability when issues can't wait.
Already have an MSP? I work alongside existing providers as an after-hours and Microsoft 365 specialist.
100TB+
Exchange Online data migrated
200,000+
Users supported across Microsoft Identity environments
Verified Microsoft Credentials
Microsoft 365 and Exchange certified
Review public Credly badges covering Microsoft 365, Office 365 Identity, Exchange, and cloud platform expertise.
See Microsoft credentials
On-site support across South East Queensland, plus remote support Australia-wide.
Microsoft 365, Identity & managed IT, at enterprise standard
Ongoing support and high-stakes projects for Brisbane businesses, MSPs and law firms, delivered by a senior specialist, not a help desk.
Proactive, senior-level management of your Microsoft 365 and IT environment. No lock-in, no call-centre tiers.
- Tenant health, Identity & access oversight
- Email security, DMARC, SPF & DKIM monitoring
- Priority support, including after-hours
Ongoing plans, scoped to your needs
Request a Managed IT ProposalEntra ID, Exchange Online, Conditional Access and email security, designed and hardened to enterprise standards.
- Entra ID & access management
- Exchange Online & email security
- Security reviews & remediation
Project or assessment, custom quote
Request a ConsultationSpecialist projects & consulting
High-value, one-off engagements where deep Microsoft 365 experience matters. Open the full Services page for detail.
Microsoft 365 Tenant Migration & Exit
Mergers, acquisitions, demergers and platform exits
Email Investigation & eDiscovery
Legal holds, cross-mailbox search, court-admissible exports
Email Security (DMARC/SPF/DKIM)
Stop domain spoofing and reach enforcement
Exchange Assessment
Free health check and migration roadmap
Microsoft 365 Support
Licensing, Entra ID, security, compliance
Website Development
Websites for trades & small business from $990 inc GST
Changing platform? Office 365 migration from Google Workspace, or a Microsoft 365 migration in Brisbane after a merger or an acquisition.
After-hours & emergency support for business
When business-critical IT fails outside business hours, email down, lockouts, M365 outages, security incidents. From 4pm weekdays and all weekend, on-site across SEQ or remote Australia-wide. $165/hr (GST inc).
Email security · ongoing service
Can somebody send email as your business?
For most domains the answer is yes, and the owner has no way of knowing. DMARC is the record that tells receiving mail servers to refuse it. Publishing one takes ten minutes and protects nothing on its own, because until the policy reaches reject you have asked those servers to watch somebody impersonate you and deliver it anyway.
Most domains never get past that first step. Moving up means knowing every system that legitimately sends as you, and that answer only comes from reading the reports. That is the job here. Not a dashboard you are left to interpret, and not software that waits for tens of thousands of messages before it will offer an opinion.
- Reports come here, not to a mailbox nobody opens
- Daily SPF, DKIM and DMARC checks with alerts on any change
- The policy steps up when the evidence supports it, not on a calendar
From $29 per domain per month, GST inclusive.
Find out, free
No sign up, and the domain you check is not recorded. It reads your live records and answers in plain English.
Runs the same DNS checks the paid service runs every night. It can tell you what your records instruct receivers to do, and cannot tell you whether your own mail would survive that instruction, which is the part that needs the reports.
Enterprise scale by day. Your business after hours.
Hamilton365 is one senior specialist, not a help desk. The person answering your call spends every working day running Microsoft 365, Identity, and email infrastructure at serious scale, and brings that standard to businesses that could never justify hiring for it.
100TB+
of email moved from on-premise Exchange to Exchange Online for one of Queensland’s largest education providers. Migrations are routine here, not an event.
99.9%+
DMARC compliance across 1.5 million emails a week. The same email security discipline gets applied to your domain, at your scale.
200,000+
users across the Identity and access environments I run every working day. Entra ID, MFA, and Conditional Access at a scale most consultants never touch.
2,000+
shared mailboxes under automated lifecycle governance: time-boxed access, enforced legal hold, and periodic access reviews. The same discipline applies whether a business runs two mailboxes or two thousand.
MCSE certified, 25+ years in enterprise IT.
See the verified Microsoft credentials →Trusted By Local Clients
What Clients Say
Selected reviews from our Google profile
Robert Cobcroft
"Jamie worked on solving a couple of persistent DMARC problems with a domain that I manage. He solved them swiftly and now I'm signed on for Jamie's managed DMARC monitoring service. Gives peace of mind, especially with Jamie. He genuinely cares and is prepared to go the extra distance to make sure everything functions perfectly. Not to mention his vast skill set and passion for his work."
Scott Moore Realty
"We've been working with Jamie for the last few months and the experience has been great. He set up our Google Workspace environment and is always available when we need support. Jamie is reliable, easy to work with, and quick to respond. Highly recommended if you want dependable IT help without the runaround."
Ivy Resets
"I am absolutely thrilled with the website Hamilton365 built for my home organisation business, Reset And Run. Because my business is all about creating order and calm, having a website that looks first-class and functions flawlessly is incredibly important to me. The team truly understood my vision and delivered a beautiful, professional site. I couldn't be happier with the result and highly recommend them!"
Herve L
"Jamie manages Google Workspace for my company. I'm based in Europe most of the time and recently got locked out of my account, called him not realising it was 2am in Brisbane, and he picked up and fixed it on the spot. That's the level of service. Highly recommend."
Get in Touch
Tell me about your Microsoft 365, Identity, or managed IT requirements, or reach out for after-hours support
Contact Information
Location
West End, Brisbane
Queensland, Australia
Availability
Monday-Friday from 4pm to 6am | Weekends 24/7 | Emergency support available when you need it most