Email

Easily improve your email security

Agerion IT Julian Adam IT Projectmanagement

It is expected that over 347.3 billion emails will be sent in 2023. Hundreds of emails from you, your colleagues, and your suppliers fly across the internet every day.

It seems so obvious, but...

When you receive an email, are you certain who sent it?
Are you sure your email content reaches the recipient correctly?
And are you sure your colleagues aren't just clicking on a link?

Email is an essential way to communicate. Above all, continue to do so securely.

How does the email world work?

It's important to understand how something works before you can make business decisions about it. That's why we've outlined the world of email below.

From the sender, an email travels via an email server to a recipient. Before it arrives, there are several ways to verify its accuracy.

There are three useful ways to improve your email security:

DKIM: Does the content match the original message?
SPF: Is the sender correct?
DMARC: What do we do with this email?

We are happy to share our knowledge about email security with you in clear language.

Stefan Frerichs

The weak point: human beings

We also use the Mimecast tool to train your team. Ultimately, we can make many technical improvements, but we don't want to sit next to your colleagues to prevent them from clicking on risky things.

Keep IT simple

SPF, DKIM, and DMARC technologies significantly enhance your email security. They ensure that recipients know that emails originate from the original sender and have not been altered during transmission.

SPF	DKIM	DMARC
IP adres authorization check	Message content verification	Policy framework for the results
Checks whether the sending mail server is authorized to send emails on behalf of a specific domain.	Adds a (visible to you) digital signature to your emails, so recipients know it comes from you.	Allows domain owners to define policies for handling emails in case of unauthorized use.

How SPF Works	How DKIM Works	How DMARC Works
Domain owners add SPF records to their DNS configuration. These indicate which IP addresses are authorized to send emails on behalf of that domain.	A sent email automatically receives a private key from the sending server. The receiving server compares the signature with the public key from the DNS record.	If the DKIM signature or SPF check is incorrect, DMARC is initiated. For example, this policy says reject or quarantine and sends a report to a designated responsible person.

Verbeter uw e mailsecurity Agerion IT 2023

Mimecast

Due to increasingly sophisticated email attacks, human error is becoming increasingly difficult to prevent. That is why we use Mimecast to filter as many risks as possible from mailboxes. Email inspection is performed, and all attachments and URLs are also inspected before they reach an inbox.

The Barrier
This ensures that you, as the recipient, are well-protected. Mimecast achieves this not only by deploying a spam filter, but also by scanning incoming emails with anti-malware, antivirus, and anti-phishing.

The Human
Once you have overcome the first barrier, it is important for your team to be aware of potential risks. Human error can easily occur. That is why Mimecast also guides your team through the most important topics in short, humorous videos.

Mimecast also detects: