IT security - Email validation

Email fraud has become an everyday occurrence where both sender and recipient have a shared responsibility to ensure that security is in order, as security can only be maintained jointly.

Please make sure that your email server is updated with DMARC, SPF and DKIM for all incoming and outgoing emails.

At Gram Clean Air we check for the above, and if the sender of the email has not set this up, emails will be sorted out and not received by us.

Why are DMARC, SPF and DKIM important for your email server?

When you send emails from your company domain (e.g. @company.com), it's important that your emails are delivered correctly. More importantly, it's important that your emails are not abused by hackers to send fake emails in your name. This is where SPF, DKIM and DMARC come in.

SPF (Sender Policy Framework)

SPF works like an access list. It tells the recipient's mail server which servers are authorised to send emails on behalf of your domain. If an email comes from an unknown server, it risks being rejected as spam or fraud.

✅ Protects against forged senders
✅ Increases the likelihood of your email getting through


DKIM (DomainKeys Identified Mail)

DKIM works like a digital signature. When you send an email, a cryptographic signature is added that the recipient can verify. This ensures that the content of the email has not been altered along the way and that it comes from a trustworthy source.

✅ Guarantees that the content has not been altered
✅ Increases the trustworthiness of the recipient's mail server


DMARC (Domain-based Message Authentication, Reporting and Conformance)

DMARC combines SPF and DKIM and gives you control over what happens to non-compliant emails. For example, you can choose whether to mark them as spam or reject them - and most importantly, you receive reports on any abuse of your domain.

✅ Combines SPF and DKIM for maximum security
✅ Provides insight into who might be abusing your domain
✅ Helps prevent phishing attacks in your name


In a nutshell

Without these security settings, your domain is vulnerable to phishing, spoofing and fraud. By implementing SPF, DKIM and DMARC, you'll protect your business reputation, improve email deliverability and increase trust with both customers and business partners.

 

How to test if your email server is set up correctly:

You can check if DMARC, SPF and DKIM are correctly configured and working via the link below:

DMARC Record Checker Tool | Verify DMARC Records Instantly

Status of Gram Clean Air: