Email delivery · SPF · DKIM · DMARC
Emails going to junk or not being delivered?
When Gmail and Outlook cannot prove your email is really from you, they bin it. We find out why, fix your SPF, DKIM and DMARC records and test until your mail lands in the inbox. From $790 + GST.
Why are my emails going to junk?
Usually because your domain's SPF, DKIM or DMARC records are missing or wrong, so receiving servers cannot confirm the email came from you. Google, Yahoo and Microsoft now expect all three. Fix the records for every service that sends as your domain, then enforce DMARC. Cyberstore does this from $790 + GST per domain.
Why are my emails not being delivered?
In most cases, Gmail, Outlook and other providers cannot confirm the email really came from your domain, because SPF, DKIM or DMARC is missing or set up wrong. So they send it to junk or reject it. Other causes are a blacklisted server, a website sending as you, or a hacked mailbox.
The rules got tighter recently. Google and Yahoo started requiring SPF, DKIM and DMARC from bulk senders in February 2024, and Microsoft followed for Outlook.com and Hotmail from 5 May 2025. Small businesses get caught too, because a domain with no DMARC record looks the same as a spammer to a filter.
| Symptom | Likely cause | Fix |
|---|---|---|
| Emails land in the recipient's junk folder | SPF, DKIM or DMARC missing or failing | Correct records for every sender |
| Bounce saying "unauthenticated" or "5.7.x" | Provider rejecting mail that fails checks | Fix authentication, then enforce DMARC |
| Website form emails never arrive | Web server not allowed to send as your domain | Send through an authenticated mail service |
| Newsletters go to spam, normal mail is fine | Newsletter tool not set up with DKIM for your domain | Add DKIM and align it to your domain |
| Clients get emails you never sent | Domain being spoofed, or a mailbox is hacked | Enforce DMARC, check mailbox rules and logins |
Sources: Microsoft sender requirements from May 2025 (DMARC Report). Checked 23 October 2026.
// Price
What it costs
Fixed price agreed before we start. Prices are in Australian dollars and exclude GST.
Email delivery fix
One domain: diagnosis, SPF, DKIM and DMARC set up for every legitimate sender, and delivery tests.
From $790
DMARC monitoring
We read the reports, catch new senders and spoofing, and move you safely to full enforcement.
$99 / month
Wider email security
Microsoft 365 or Google hardening, MFA and fraud awareness. See email security.
Quoted
If we find a hacked mailbox, we tell you straight away and help contain it first.
Who does the work
Noah Greenstone, Founder and Principal Consultant. 30+ years in digital, building and securing websites in Perth since 2008. You deal with the person doing the work, not a call centre. About Noah
// How we do it
How we get your email back into the inbox
- 01
Diagnose
We look at your DNS records, recent bounce messages and email headers to see exactly why mail is failing.
- 02
Find every sender
Microsoft 365 or Google Workspace, your website, newsletter tool, CRM, accounting software. Anything that sends as your domain.
- 03
Fix SPF and DKIM
One correct SPF record and DKIM signing for each legitimate sender.
- 04
Start DMARC
A DMARC record in monitoring mode, with reports sent somewhere useful.
- 05
Enforce
Once the reports are clean, DMARC moves to quarantine and then reject, so spoofed mail is blocked.
- 06
Check delivery
Test emails to Gmail, Outlook and others confirm your mail lands in the inbox.
// FAQ
Common questions
Why are my emails going to junk?
The most common reason is that your domain's SPF, DKIM or DMARC records are missing or wrong, so Gmail and Outlook cannot prove the email really came from you. Other causes are a website or newsletter tool sending as your domain without permission, a blacklisted server, or a hacked mailbox sending spam.
Why do Gmail and Outlook reject my emails?
Since February 2024, Google and Yahoo require bulk senders to have SPF, DKIM and DMARC in place. Microsoft brought in the same rule for Outlook.com and Hotmail from 5 May 2025, sending failing mail to junk and then rejecting it. Even small senders are judged more harshly without these records.
Do I need DMARC?
Yes, if you send email from your own domain. DMARC tells receiving servers what to do with email that fails checks, and sends you reports showing who is sending as you. It is also what stops criminals sending fake invoices in your name.
My website contact form emails never arrive. Is that the same problem?
Often, yes. Websites usually send from your domain through the web server, which is not listed in your SPF record. We fix it by sending form emails through an authenticated mail service and adding it to your records.
How long does it take to fix?
Most fixes take a day or two to set up. DMARC is then moved from monitoring to full enforcement over a few weeks, so no legitimate email gets blocked along the way.
How much does it cost?
From $790 + GST per domain to diagnose and fix SPF, DKIM and DMARC. Ongoing DMARC monitoring is $99 a month. Larger setups with many sending services are quoted.
// Keep going
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// Next step
Talk to us about Emails Not Delivered
Tell us what you run and what you are worried about. We will come back within one business day and, if it helps, send you a fixed-price quote.
- No-obligation first consult
- Fixed scope and price before work starts
- A clear written report and next steps
Written and reviewed by Noah Greenstone, Founder and Principal Consultant. Last reviewed 23 October 2026.
Tell us what is going on
We read every enquiry and reply within one business day. If it is urgent, call 1300 566 652.
Organisations Noah and the team have built, secured and supported
