Sendmarc Email Security

Protect your business against phishing and social engineering attacks.

Anyone can send an email claiming to come from you.

It’s as simple as creating an email address and putting your name as the sender. They can even claim to send emails from your company’s domain name, pretending to be people that you know and trust.


The result is emails that look authentically yours, but are in fact carefully crafted social engineering attacks. And the impact for your business when your humans and your clients take the bait can be disastrous – from gaining access to sensitive information, to deposit fraud, to gaining access to your systems and seeing your operations grind to a halt.

You need to safeguard your reputation. You need Sendmarc email security.

What Is Sendmarc?

Sendmarc is a Solid Systems partner focused on email security and reporting, ensuring that you have full visibility over the emails that are sent from your domain name.

We work closely with Sendmarc to monitor who is trying to send emails using your domain, and make sure that only authorised users’ emails get sent over your servers. This reduces the risk of impersonation attacks and email interception, ensuring that when your clients receive emails from you, they can trust that they are legitimate.

Don’t worry about people pretending to be you. SOLID’s got you.

How Does Email Domain Security Work?

When you work with Solid Systems and Sendmarc, we provide all-around protection for your communications, helping you to boost your internal email security, reduce the risk of impersonation and social engineering attacks, and bolstering your reputation as a reliable sender. Here’s how:


Gain insight into who is trying to impersonate your company and which servers they’re using.


Make sure that only your authorised humans are able to send mail from your domain.


Maintain a record of all legitimate mails that’s being sent across your servers for compliance’s sake.


See your delivery rate increase and your mails reach the right inboxes without being caught by spam filters.


Gain back your clients’ trust, with them knowing that every mail they receive from you is reliable.

How Secure Is Your Domain?

The first step in ensuring your email security is to check your domain’s security, which you can do quickly and easily using the form below.

What Does Your Score Mean?

When you do the check above, you’re going to get a score between 0 and 5, which indicates how protected your domain is against attack.


A score of 5 means that you’re already protecting yourself against impersonation and phishing attacks, and there’s a low risk of your company domain being used without your knowledge.


A score of 4 means that you have some protection in place, but there’s still a risk that legitimate emails end up in spam folders, and advanced cyberattackers could still find ways to impersonate your business.

3 or less

A score of 3 or less means that we have detected minimal to no domain security, and your business is at risk of having your domain name compromised by cyberattackers impersonating your company.

Why Should You Use Solid Systems To Boost Your Email Security?

When you work with Solid Systems as your technology partner, you know that we’re putting your business’ security first and foremost. We work with you to understand your unique needs and provide managed IT services that prioritise your security and give you peace of mind.

Managing your Sendmarc email security is just a small part of what we do!

We find the right cybersecurity solutions like Defender for Microsoft 365, Microsoft Intune, Azure Active Directory and more, and integrate them seamlessly into your daily lives to see you working in safer, more secure, and more productive ways, without any extra effort. We work with you to make sure that your data is backed up to the cloud, and ready to be restored in case disaster hits. We offer training for your humans in cybersecurity best practices, and their role in keeping your company protected.

Want to learn more about Solid Systems’ cybersecurity solutions and the impact they can have on your operations? Get in touch with us today.

Secure Your Communications


With over 21 years of experience in helping businesses to manage their technology, Solid Systems is perfectly placed to help you with protecting your systems from threat. We’re just a click away, so don’t hesitate to contact us.

Since 2003, we have specialised in delivering leading technology solutions and offering guidance to organisations in South Africa and abroad, in the most human way possible.

We love technology and the exciting ways that it evolves, and are constantly improving the tools that we use. But humans are at the heart of our business. That’s why we value each relationship and prioritise a personal approach, finding solutions that deliver results for your company in the best way possible.

    Frequently asked questions

    What is SPF in email security?

    SPF stands for Sender Policy Framework, and is a way of authenticating which email servers mails from your company are coming from. This reduces the risk of cyberattackers sending mails that claim to come from you, since it indicates to the recipient that the mail they’re about to open hasn’t come from the correct server, and could be suspicious.

    What is DKIM in email security?

    DKIM, or DomainKeys Identified Mail, is an email security measure you can put in place which encrypts any emails that are sent from your servers with a private key. If the mail is tampered with in any way before reaching the intended recipient, it won’t carry the correct key, and will be marked as suspicious, or outright rejected, by the receiving mail server.

    Why do you need both SPF and DKIM in email security?

    While SPF and DKIM are both email authentication methods, they work in very different ways to protect your email communications. SPF protects your mails by defining the servers that your emails are expected to come from, while DKIM prevents the mails from being tampered with in transit.

    What steps can I take to stop attackers from sending emails using my domain name?

    Putting SPF and DKIM rules in place for emails that are sent from your servers is important for protecting your domain and your reputation. But these measures are only as secure as the server that receives them. Putting a tool like Sendmarc in place not only gives you visibility into who is trying to send emails from your domain, but also helps to define rules for how emails that fail SPF and DKIM checks should be handled – either quarantining them or rejecting them altogether.

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