Email Security That Actually Stops Phishing & Fake Invoices

If any of these sound familiar, we should talk

• Fake invoice and supplier-impersonation emails getting through to finance
• Staff getting tricked by phishing emails that look genuine
• A staff mailbox got compromised and you are not sure how far it spread
• Spam and junk filling inboxes — real emails getting lost in the noise
• No DMARC, SPF or DKIM — your domain can be spoofed by anyone
• No visibility of who clicked, who reported, or what was quarantined

A layered email defence that actually works

Advanced Email Filtering

Inbound filtering for spam, malware, phishing and business email compromise (BEC). Sandbox detonation for suspicious links and attachments. Quarantine, release and reporting workflows your team will actually use.

Impersonation and BEC Protection

Detect spoofed CEO, supplier and finance emails. Catch lookalike domains and display-name impersonation. Block fake invoice and payment-redirect attempts before they reach your finance team.

Domain Authentication (SPF, DKIM, DMARC)

Stop attackers spoofing your domain to your own clients. DMARC reporting so you actually see who is sending email as you. We deploy DMARC in stages — monitor, then quarantine, then reject — without breaking your real outbound mail along the way.

MFA and Mailbox Hardening

Multi-factor authentication on every mailbox — no exceptions, no legacy bypasses. Risk-based sign-in policies for suspicious logins. Disable legacy email protocols that bypass MFA entirely.

Security Awareness Training

Short monthly micro-training your team will actually finish. Simulated phishing campaigns with reporting on who clicked. A "Report Phish" button in every inbox — used, tracked and actioned.

Mailbox Backup and Recovery

Cloud mailbox backup covering mail, drives, document libraries and chat. Granular restore — single email, folder or full mailbox. Tested restores — not just "we have backups somewhere".

Why Australian businesses choose Netluma IT for email security

• Layered, not single-product. Filtering, impersonation protection, MFA, DMARC, training and backup — together. One layer slips, the others catch it.
• You actually use what you pay for. Most premium business licences already include serious email security features. We turn on and configure what you already own first, before recommending any new spend.
• Plain-English reports. Every health-check comes back as a plain-English summary your leadership team can read in 10 minutes — what is at risk, what we recommend, in what order.
• Australian based, senior engineers. Direct access to a senior security engineer — no offshore tier-one call centre, no script-reading. Same engineer plans, deploys and supports.
• Training your team will actually do. Five-minute monthly micro-training — not a 90-minute corporate compliance module nobody finishes.
• Visibility from day one. You get a dashboard showing what was blocked, what was clicked, what was reported and what was quarantined — every month.

We are not the right fit if…

• You want a magic box that "stops phishing" with no policy or training
• You are not willing to roll out MFA on every staff mailbox
• You want the cheapest spam filter, not a properly layered email defence
• You only have 1 mailbox — most of what we do does not apply at that size

Free email security health-check

A no-obligation, plain-English review of your current email security posture. You walk away with a prioritised, costed roadmap of what to fix first — whether or not you become a client.

• Review of your current inbound filtering, impersonation protection and MFA coverage
• SPF, DKIM and DMARC health-check — and a clear policy uplift roadmap
• Mailbox backup and recovery readiness review — with a test-restore plan
• Phishing exposure snapshot — what would get through right now, and why
• Plain-English risk report with prioritised, costed recommendations

Common questions about email security

Do you only support one email platform, or do you work with whatever we already use?

We are tool-agnostic. We work with whatever email platform you already run — cloud or on-premise. Most clients we walk into already have a premium business email subscription with serious security features included that simply have not been turned on. Our first step is always to configure what you already own properly, before recommending any new licensing.

How much does email security cost for a business?

Cost depends on team size, what you already have in place and whether you need the full layered stack or specific gaps closed. Rather than publish generic numbers that will not apply to your business, we send a clear, line-itemised quote so you can see exactly what is monthly licensing versus one-off uplift work. Most quotes are back the same business day — request the free health-check above and a senior security engineer will call you within 1 business hour.

What is DMARC and why does it matter?

DMARC (Domain-based Message Authentication, Reporting and Conformance) tells receiving mail servers what to do with email that claims to come from your domain but fails authentication checks (SPF and DKIM). Without DMARC, attackers can spoof your domain and send fake invoices to your own clients with your name on them. We deploy DMARC in stages — monitor first to see who is legitimately sending as you, then quarantine, then reject — without breaking your real outbound email along the way.

We had a mailbox compromise — what do you do differently?

When a mailbox is compromised, attackers typically set silent forwarding rules, mark inbound finance emails as read, and watch for invoices to redirect. We respond by isolating the account, revoking all active sessions and refresh tokens, auditing every inbox rule and forwarding configuration, reviewing every sent email during the compromise window, and notifying any affected clients or suppliers. Then we close the gap that let it happen — usually missing MFA, a legacy protocol, or a phishing email nobody reported.

Will rolling out MFA on email disrupt our team?

Done properly, no — most users finish MFA enrolment in under 5 minutes using a free authenticator app on their phone. We plan the rollout in waves (starting with admin and finance accounts), provide written and video walkthroughs, and run a short live session for any team member who needs help. We have rolled MFA out across hundreds of mailboxes without serious productivity impact.

Can you train our team to spot phishing emails?

Yes. Security awareness training is part of every email security engagement — short monthly micro-training (under 5 minutes) so your team actually finishes it, simulated phishing campaigns so you see who would click, and a "Report Phish" button in every inbox so reporting is one click. You get a monthly dashboard showing who clicked, who reported, and how your team is trending.

What is included in the free email security health-check?

A no-obligation, plain-English review of your current inbound filtering, impersonation protection, MFA coverage, SPF/DKIM/DMARC posture and mailbox backup readiness. You walk away with a prioritised, costed roadmap of what we would fix first and why — whether or not you become a client.

Are you Australia-wide?

Yes. Email security is a remote-delivery service by design — there is nothing physical to install on-site. We support Australian businesses in every state and territory and are based on the Gold Coast, with a senior security team across SE QLD. Most rollouts are completed entirely remotely.

Stop phishing & fake invoices before they cost you — get help today

An Australian-based team of senior security engineers. Tool-agnostic. Layered defences that actually work together — not magic boxes.

Schedule a free 15-minute call or call 1300 521 162.