Email deliverability – Prevent spam problems with SPF, DKIM and DMARC

📩 Why your email often ends up in spam

More and more Dutch companies are suffering from company emails that end up in the spam folder. This is not only frustrating, but also detrimental to customer relationships and revenue. With the proper configuration of SPF, DKIM and DMARC, organizations can dramatically improve their e-mail delivery.

At ALTA-ICT B.V. we help Dutch SMEs, IT managers and C-level executives with measurable results. Thanks to our ISO27001 and NEN7510 certifications, we offer a proven approach that is both compliant and future-proof.

BYOD – Safe and user-friendly working

📌 What is email deliverability and why is it crucial in the Netherlands?

Email deliverability is about the probability that your sent email actually lands in the recipient’s inbox.
For Dutch companies, this is especially important because of:

AVG/GDPR compliance: privacy and data integrity
Microsoft 365 adoption: the most widely used platform in NL
Reputation & trust: customers expect reliable communication

Common causes of deliverability problems are improperly set DNS records, absence of DKIM signatures or missing DMARC policies.

🛠️ How to improve email deliverability – Roadmap

Step 1: Domain check & SPF fix

Make sure your SPF record contains all valid mail servers
Avoid too many DNS lookups (max 10)

Step 2: DKIM configuration

Add cryptographic signatures
Provide key rotation and monitoring

Step 3: DMARC implementation

Start with “none” policy for monitoring
Slowly switch to “quarantine” or “reject”

Step 4: Microsoft 365 optimization

Properly set up Exchange Online Protection
Activate anti-spoofing and phishing protection

Step 5: Monitoring & reporting

Use DMARC reports
Measure deliverability improvements continuously

⚠️ Common mistakes in Dutch organizations

Setting only SPF and forgetting DKIM/DMARC
Set DMARC directly to “reject” without monitoring
No consideration of forwarding and mailing tools
No periodic checking of DNS records

These mistakes often lead to blockages, bounce rates and reputational damage.

📈 ROI of good email deliverability

+30% higher open rates through better inbox placement
Reduced customer loss through reliable communication
Faster sales cycles because offers arrive instantly
Lower support costs because customers do not miss emails

🚀 The ALTA-ICT approach

At ALTA-ICT, we provide:
✅ Quick domain check & fix
✅ Optimal Microsoft 365 configuration
✅ Measurable deliverability improvement
✅ Compliance with AVG, NEN7510 and ISO27001

Our approach is pragmatic: within a few days your organization will be stronger in e-mail communication, with demonstrable results.

❓ FAQ

Q: How do I know if my emails end up in spam?
A: Test with multiple providers (Gmail, Outlook, Ziggo) and analyze DMARC reports.

Q: How long does a correct implementation take?
A: At ALTA-ICT usually 2-3 working days.

Q: What does this cost for an SMB?
A: Depending on domains and mail volumes, often <1% of your IT budget.

✅ Conclusion – Your mail should arrive

In 2025, reliable e-mail is not a luxury, but a necessity. With the right SPF, DKIM and DMARC configuration, you’ll make sure your emails do get read.

👉 Schedule your free email deliverability check with ALTA-ICT today and increase your reliability immediately.

📞 088-0333100 | 🌐 alta-ict.co.uk/free-consultation