Mimecast Email Security

At Atlas Cloud, we’re one of few providers of industry-leading Mimecast email security and continuity solutions in the North East. We’ve partnered with the best in order to provide cloud hosted email threat solutions including phishing protection, ransomware prevention and spam filtering. Mimecast Targeted Threat Protection is seamlessly integrated with our UK customers’ email services.

Email is an integral part of how every business operates but it also represents a weak link for organisations due to the prevalance of ransomware attacks and human error. A recent survey found that 90% of businesses have seen an increase in the number of email phishing attacks over the past 12 months and 40% have seen the volume of impersonation attacks increase (source:

We have substantial experience in implementing Mimecast email security solutions for Office 365 and Exchange. Every email that your company receives is put through three stages of threat assessment at a speed and detail that human precautions are unlikely to achieve. The three stages of our hosted email filtering service are:

1. Attachment inspection

Email attachment inspection

2. Inspection of URL's

Email URL inspection

3. Email Content checks

Email content checks
1. We look at any attachments within the email and carry out the following checks: 
  • Check for specific file types & macros
  • Run checks against malicious file database
  • Sandbox email attachments and open them in a safe environment to see if they execute as expected
2. Next we examine any URL’s within the email and perform the following checks:
  • Check any URLs in the message
  • Resolve them through to end destination
  • Check against malicious URL database
  • If the URL downloads a file this is executed in a safe sandbox environment
  • Content on the URL evaluated for spoofed content
3. Finally we inspect the content of the email for the following: 
  • Check against sender blocked/permitted lists
  • Check DNS authentication
  • Check sender reputation (Mimecast Greylisting)
  • Scan for spam (Mimecast Spam Filtering service)
  • Carry out content and impersonation checks (Mimecast Phishing Protection etc.) 

Email Continuity Service

Mimecast is constantly adapting and learning to keep pace with the latest methods favoured by attackers and provide you with essential email continuity. In the event of an attack our solution is durable, allowing no interruption in accessing your emails. All emails are fully recoverable due to the continuous sync and recover service. Mimecast email backup and restore is a vital solution for your business continuity. 

Email will remain the main threat posed to companies security going forward either through attacks by hackers or user error. To ensure your company is protected get in touch with us today to find out how we can help make your email security more resilient. 

Frequently asked questions

Security in the cloud


Yes marking email addresses as permitted or banned is easy to do and you have full control.



By default Mimecast allows files up to 200MB (inbound & outbound) but you have total control to limit.

Backup duration


Yes, in the event that email is forced offline by a cyber attack, Mimecast provides an email system that is always available


Remote Working Solutions

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Go remote within 1 week. 
From £20 per user per month.

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