Email Security Gateway Services
Secure Email Gateway Services For SMBs Across Newcastle and the North East.
A secure, cloud‑based email gateway protects your organisation from spam, phishing, malware and impersonation attacks before they reach your inbox. Trustack’s Email Gateway services act as your first line of defence, filtering threats, enforcing policy and ensuring email continuity.
Our Valued Customers
Advanced Threat Filtering
Stops spam, malicious payloads, phishing attempts and harmful URLs using AI and global threat intelligence.
Outbound Protection
Blocks suspicious outbound emails, prevents data loss, and protects against compromised accounts sending malware.
Email Continuity
Because the gateway sits between Microsoft 365 and your devices, you can still send and receive email if Microsoft has an outage.
Dynamic Microsoft Licensing
Licences dynamically adjust when users are added or removed in Microsoft 365, helping you pay only for what you use.
Email Gateway Services That Strengthen Your Security Posture
We deploy, configure and tune your email security gateway so it works seamlessly with Microsoft 365. This includes inbound and outbound filtering, data loss prevention, URL defence and encryption.
Our anti‑spam solution analyses all inbound junk or suspicious emails, scanning them for malware, malicious payloads and campaign‑based attack patterns. This also checks your outbound emails which means if an infected application tries to send messages on your behalf, the gateway intercepts them before they leave your organisation.
URL Defence adds an additional layer of protection by analysing web links inside emails. If a link is identified as unsafe, the message is automatically quarantined. Each user receives a daily email digest summarising any messages that were held back, allowing them to safely preview and release emails into their inbox if they are legitimate.
How our Email Gateway service works
Deploy & Integrate Seamlessly
We implement the gateway between your mail provider and your users, integrating securely with Microsoft for effortless management.
Filter, Detect & Block Threats
All inbound and outbound messages pass through advanced filtering so that threats such as spam, malware and malicious URLs are automatically blocked.
Stay Connected with Email Continuity
If Microsoft 365 has service issues, users stay able to send and receive email via the secure continuity inbox until normal service resumes.
Why Choose Trustack?
Customer First Approach
We put our customers first, giving you clarity, guidance and configuration so the gateway works exactly as your business needs it to.
Consistent, High‑Quality Protection
Our collaborative team works seamlessly to deploy and maintain the gateway, ensuring everything remains aligned with best practices.
Trusted Security Expertise
We rigorously test every solution to deliver a strong, modern email gateway solution to suit your needs.
Stronger IT Security That Keeps Your Business Moving
Your Email Gateway service is part of Trustack’s IT Security and wider Managed IT Services, working seamlessly alongside services such as Next‑Generation Antivirus and Azure CVE Remediation.
Together, these services provide a strong foundation of protection for your organisation, reducing risk, improving visibility and keeping users safe.
Hear From Our Customers
Unipres
Andrew Furness
Controller - Information Systems, Unipres UK Limited
“Trustack has been a trusted partner of Unipres for 11 years now. The stack of products they’ve worked with us to implement at Unipres has grown from an initial implementation of VMware vSphere to VMware Horizon, Veaam Backup and Replication and Trend Deep Security to name a few. We feel confident that they will implement specialist manufacturing IT solutions tailored to our business needs and deliver them to the requirements and quality Unipres expect as an organisation.”
Collingwood Business Solutions
Michael Ward
IT Director, Collingwood Business Solutions Limited
“Trustack are a trusted partner who have worked with us for a number of years. They know our business and have in depth knowledge of our complex infrastructure whether that be security, networking, virtualisation or any other parts that play an integral role in our success as an IT service provider and Insurance distribution business. Trustack have been a major part of Collingwood’s success working with us to enable us to scale accordingly with innovative solutions and robust security”
Muckle LLP
Andrew Black
Director of IT, Muckle LLP
“We rely on Trustack to help us deliver innovative, cost-effective technology. Their extensive technical knowledge and legal industry experience means they always offer us reasoned, pragmatic advice.”
“Trustack always stay one step ahead when it comes to providing the latest products and services. They understand our business and work proactively with our IT team to ensure we always deliver the best service to the firm and our clients.”
Our Case Studies
FAQs
What exactly is a secure email gateway and why does our business need one?
A secure email gateway filters inbound and outbound email to block spam, malware, phishing, spoofing, and data‑loss attempts before they reach your users. It adds an essential security layer on top of Microsoft 365 by inspecting URLs, attachments, and sender reputation.
How does an email gateway integrate with our existing Microsoft 365 or Google Workspace setup?
The gateway sits between your cloud email platform and your users. It connects securely with Microsoft 365 through Azure AD sync for automatic user provisioning and licence adjustments, and works the same conceptually with Google Workspace. All messages flow through the gateway for filtering before arriving in or leaving your mailbox.
Will using an email gateway service help us meet UK GDPR compliance standards?
A gateway strengthens GDPR compliance by preventing unauthorised data sharing, blocking malicious payloads, enforcing outbound filtering, enabling email encryption, and supporting domain authentication to reduce impersonation risk. Combined, these reduce the likelihood of a reportable data breach.
What are the advantages of a cloud-based gateway service compared to an on-premise solution?
Cloud‑based gateways benefit from global threat intelligence, automatic updates, high availability, and scalable filtering capacity. They also provide email continuity during provider outages, letting you keep sending and receiving email even if Microsoft 365 is down, something an on‑prem server can’t guarantee without significant overhead.
What specific technical features should we look for when vetting a managed gateway provider?
Look for advanced spam and malware filtering, URL defence, outbound filtering, data loss prevention, encryption, continuity inbox, Azure integration, and comprehensive logging and reporting. These are all included in Trustack’s managed gateway service.
Can a secure email gateway effectively stop advanced threats like phishing and spoofing?
Yes. Email gateways can block phishing campaigns, malicious links, impersonation attempts, and spoofed domains using a combination of AI analysis, sender authentication checks and global threat intelligence. Suspicious messages are quarantined before users can interact with them.
What specific features are included in a managed anti-spam service?
Managed anti‑spam includes inbound and outbound spam filtering, malware scanning, URL defence, data loss prevention, and quarantine management. These filters are continually updated based on global threat activity.
Can an anti-spam service provide email continuity if our primary server goes down?
Yes. Because the gateway sits between Microsoft 365 and your devices, you can keep sending and receiving email even during a Microsoft outage. Messages queue safely and sync once service is restored.