Email is the backbone of almost every business in Dubai, Abu Dhabi, Sharjah, and beyond. It is also the number one way cybercriminals get into a company's systems. Phishing scams, fraudulent invoices, spoofed sender addresses, and malware-laden attachments are not just problems for large corporations — small and medium businesses are targeted constantly, often because attackers know smaller teams have fewer defences in place. If your business relies on email daily, this guide walks you through the practical steps to lock it down properly.

Understanding the Threats: What You Are Actually Up Against

Before you can defend your inbox, it helps to understand the most common attacks your business will face.

Phishing: A fraudulent email that tricks a staff member into clicking a malicious link, entering login credentials, or downloading malware. These emails often look convincingly legitimate.
Spear phishing: A targeted version of phishing aimed at a specific person — often a finance manager or business owner — using personalised details to appear credible.
Email spoofing: An attacker forges the sender address so an email appears to come from a trusted contact, your own domain, or a known supplier.
Business Email Compromise (BEC): A scammer impersonates a senior employee or supplier and requests an urgent bank transfer or change of payment details. UAE businesses lose significant sums to BEC every year.
Malicious attachments: PDFs, Word documents, or ZIP files that install malware when opened.

Many of these attacks require no technical sophistication on the attacker's side — just a convincing message and an unsuspecting recipient. That is why technical controls and staff awareness both matter.

Set Up SPF, DKIM, and DMARC on Your Domain

These three DNS-based protocols are the foundation of email authentication. They tell the wider internet which mail servers are authorised to send email on behalf of your domain, and what to do when a message fails those checks. Many UAE businesses — especially smaller ones — have never configured these, leaving their domain wide open to spoofing.

SPF (Sender Policy Framework): A DNS record that lists the servers allowed to send email from your domain.
DKIM (DomainKeys Identified Mail): Adds a digital signature to outgoing messages that receiving servers can verify.
DMARC (Domain-based Message Authentication, Reporting and Conformance): Tells receiving mail servers what to do with messages that fail SPF or DKIM — reject them, quarantine them, or simply report them to you.

Setting a DMARC policy of p=reject is the gold standard. It means no one can successfully send email pretending to be your domain. Your IT provider or domain registrar can help you configure all three records correctly — it typically takes less than an hour but makes a significant difference.

Use a Business-Grade Spam and Phishing Filter

The built-in spam filter that comes with a basic email plan is rarely sufficient for business use. Dedicated email security gateways — such as Microsoft Defender for Office 365, Proofpoint, or Mimecast — provide far more robust protection. They scan incoming messages for known phishing patterns, malicious URLs, dangerous attachments, and impersonation attempts in real time.

Key features to look for in a business email security solution include:

Attachment sandboxing — executing suspicious files in an isolated environment before delivery
URL rewriting and time-of-click analysis — checking links at the moment a user clicks them, not just at delivery
Impersonation protection — flagging emails that claim to come from your CEO or a known supplier but originate from an unrelated address
Quarantine management — giving administrators control over held messages

If your business is on Microsoft 365, you already have access to Defender — but it needs to be properly configured. Out-of-the-box settings are not always sufficient.

Enable Multi-Factor Authentication on Every Email Account

Even if an attacker obtains a staff member's password through a phishing attack or a data breach, multi-factor authentication (MFA) stops them from accessing the account. MFA requires a second form of verification — typically a code from an authenticator app — before granting access.

Enabling MFA on email accounts is arguably the single highest-impact security step a small business can take. It is free, it takes minutes to set up on platforms like Microsoft 365 or Google Workspace, and it blocks the vast majority of credential-based account takeovers.

Avoid using SMS-based verification where possible, as SIM-swapping attacks can bypass it. An authenticator app such as Microsoft Authenticator or Google Authenticator is more secure.

Train Your Staff — They Are Your Last Line of Defence

Technology can block a great deal, but a convincing phishing email will occasionally get through. When it does, your staff need to know how to handle it. Regular, practical training reduces the likelihood that a single click brings down your business.

Effective staff email security training should cover:

How to spot a phishing email — urgency, unusual sender addresses, suspicious links, unexpected attachments
What to do when they receive a suspicious message — report it, do not click, do not reply
The dangers of responding to unexpected payment or bank detail change requests by email alone — always verify by phone
Password hygiene — not reusing passwords, using a password manager

Consider running simulated phishing exercises periodically. These send fake phishing emails to your own staff to measure awareness and identify who needs additional support. Several managed IT providers in the UAE offer this as part of a broader security package.

Keep an Eye on Email Account Activity

Even with strong defences, monitoring is essential. Attackers who do gain access to an email account will often set up forwarding rules to silently copy all incoming messages to an external address — and then wait, reading your correspondence, for the right moment to commit fraud.

Regularly review:

Email forwarding and auto-forward rules on all accounts
Sign-in logs for unusual locations or times — for example, a login from outside the UAE when your team is all local
Delegated access permissions — who else has access to each account
Any new mail rules created recently that you did not set up yourself

Microsoft 365 and Google Workspace both provide admin dashboards where you can review this activity. If you do not have time to check these regularly, your IT support partner can monitor them on your behalf and alert you to anything suspicious.

Conclusion

Email attacks are relentless, but they are also largely preventable with the right measures in place. Setting up proper authentication records, using a quality spam filter, enabling MFA, training your team, and monitoring account activity will put your business well ahead of most attackers. Whether you run a small trading company in Sharjah or a busy professional services firm in Dubai, these steps are achievable and genuinely effective. If you are not sure where your current email security stands — or you want help getting everything configured correctly — get in touch with the Rigit team. We work with businesses across the UAE to get their email security sorted properly, without the jargon.