Email Security & Deliverability
Define Marketing is an Australian-owned digital marketing studio based in Logan Reserve, Queensland (Brisbane), offering Email Security & Deliverability (Supporting Services) for businesses across Australia & New Zealand.
DMARC, DKIM, and SPF authentication ensuring your critical client emails land in the inbox, never spam.
What this involves
If your emails are landing in spam, your business is quietly losing opportunities — quotes that never get read, proposals that disappear, invoices that go unnoticed. Email deliverability is about making sure the emails you send are authenticated, trusted by inbox providers, and actually reach your recipients. It's technical, and it matters more than most businesses realise.
We set up and enforce the email authentication standards that Google, Yahoo, and Microsoft now require: SPF, DKIM, and DMARC. We audit your DNS records, configure DMARC policy enforcement, ensure compliance with the new Google/Yahoo sender requirements, and monitor your spam rate so problems are caught before they damage your sender reputation.
This applies whether you send from your own domain, through a marketing platform, or both. Proper authentication protects your sender reputation, improves open rates, and ensures the critical emails — quotes, proposals, invoices, and client correspondence — actually arrive.
Core Deliverables & Outcomes
How we work
- 1
DNS & sender audit
We audit your domain's SPF, DKIM, and DMARC records and your sending sources to find what's missing or misconfigured.
- 2
Authentication setup
We configure SPF, DKIM, and DMARC correctly for your domain and all sending platforms, including marketing tools.
- 3
DMARC enforcement
We move DMARC from monitoring to enforcement policy, blocking unauthenticated senders from spoofing your domain.
- 4
Compliance & monitoring
We ensure compliance with Google/Yahoo sender requirements and set up monitoring on your spam rate and deliverability.
Why it matters
- Your emails reach the inbox, not the spam folder
- Compliance with Google, Yahoo, and Microsoft's sender requirements
- Protection against your domain being spoofed by scammers
- Improved open rates for marketing and transactional email
- Monitoring that catches deliverability issues before they damage your reputation
Frequently asked questions
Why are my emails going to spam?+
The most common cause is missing or misconfigured email authentication — SPF, DKIM, or DMARC — especially since Google and Yahoo tightened their sender requirements. We audit and fix this so your emails are authenticated and trusted.
What are SPF, DKIM, and DMARC?+
They're email authentication standards. SPF says which servers may send from your domain, DKIM signs your emails cryptographically, and DMARC tells receivers what to do if authentication fails. Together they prove your email is genuinely from you.
Does this apply to marketing emails too?+
Yes. Email authentication affects everything you send from your domain — marketing campaigns, transactional emails, and one-to-one correspondence. We configure it for all sending sources.
Will this fix my email deliverability permanently?+
It fixes the technical foundation. Ongoing deliverability also depends on list quality and sending reputation, which we can advise on. The authentication setup itself is a permanent, one-time fix that stays in place.
Ready to implement Email Security & Deliverability?
Speak directly with Martin & Tabitha to get an actionable proposal with transparent pricing.
Looking for email security & deliverability in your area? We have localised pages for Logan, Brisbane, every capital city and the regions between.
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