Managed IT

Managed Mailbox. Consistent security and productivity.

A fully managed company mailbox for external users and contractors. Exchange Online, conditional access, consistent signatures, backup and unlimited support, all in one service.

Book a call See what is included

The Managed Mailbox Stack is our service for people who only need a company mailbox: external users, contractors and anyone else who works with you without needing a full Microsoft 365 setup. Every mailbox gets the same sign-in protection, signature and backup, and the same support, so the experience is consistent whoever is using it.

A proper company mailbox for external users and contractors
The same sign-in rules, signature and backup on every mailbox
Unlimited support, fully managed by us

Which stack is right for you?

The Power Stack is for full power users, who need a complete Office suite, a device of their own and all the software needed for compliance. The Essentials Stack is for frontline teams who share devices. The Managed Mailbox Stack is for people who just need a company mailbox. Here is how the three compare.

Feature	Managed Mailbox Stack	Essentials Stack	Power Stack
Built for	External users and contractors who only need a company mailbox	Frontline and shared-device teams, where there are more people than devices	Office-based staff, each with their own device
Microsoft licence	Exchange Online Plan 1 and Entra ID P1	Microsoft 365 F3, built for frontline workers	Microsoft 365 Business Premium
Office apps and Teams	Email, calendar and contacts only	Word, Excel and PowerPoint on the web and on mobile	Full desktop apps: Word, Excel, PowerPoint, Outlook and Teams
Mailbox and storage	50 GB mailbox, with a 50 GB archive	2 GB mailbox and 2 GB of OneDrive per user	100 GB mailbox and 1 TB of OneDrive per user
Devices	No device, just the mailbox	Shared devices, monitored and patched by us	A device for every user, monitored and patched by us
Unlimited on-site and remote support	Yes	Yes	Yes
The Power Portal	Yes	Yes	Yes
Proactive improvements	Yes	Yes	Yes
Enforced multi-factor authentication	Yes	Yes	Yes
Email signatures	Yes	Yes	Yes
Cloud backup	Yes	Yes	Yes
Password manager	No	Yes	Yes
Email authentication	No	Yes	Yes
Device monitoring and patching	No	Yes	Yes
Security awareness training	No	No	Yes
Business telephony	No	No	Yes
Cyber Essentials certification	No	No	Yes

What is in the stack

Four pillars, working as one service, so nothing falls through the gaps between them.

01Unlimited support

Unlimited support provided round the clock, with proactive monitoring reducing the number of issues that impact you day to day.

Unlimited on-site and remote support
No additional charges for support, no more surprise bills
Proactive monitoring and support, taking place behind the scenes

The Power Portal

Your self-service gateway to our service desk, so you can always get help in the time frame you need.

Report incidents, order new hardware and track workflows like new starter onboarding, all in one place
View the whole tickets history and respond to the latest updates with ease
Signs in with your existing Microsoft 365 credentials, no separate password, and fully integrated with the rest of the Managed Mailbox Stack

Proactive improvements

We don't wait for something to break. Your setup gets reviewed on a regular cadence, so it keeps pace with how your business changes.

Regular reviews, not just reactive fixes
Recommendations that keep your stack current as you grow

Unlimited 24/7 remote and on-site support

Genuinely unlimited help, remote and on site, from BPSS-checked UK engineers, with no per-ticket charges and no surprise bills.

02Mailbox

A proper company mailbox for people who only need email, set up and managed by us, so every external user and contractor gets the same experience.

Email, calendar and contacts on every device
Spam and malware filtering built in
Consistent email signatures applied automatically on every message

Exchange Online Plan 1

A professional company mailbox with email, calendar and contacts on every device, plus spam and malware filtering, set up and managed by us so every user gets the same experience.

CodeTwo signature management

Consistent, professional email signatures and legal disclaimers, applied automatically across every device, so your branding stays uniform without anyone having to set it up themselves.

03Security

Conditional access decides who can reach each mailbox, from where and on what device, so contractors and external users only get in on your terms.

Conditional access policies set up and managed by us
Multi-factor authentication enforced on every mailbox
The same security guidelines as the rest of our stacks, so nothing is left to chance

Microsoft Entra ID P1

Conditional access that decides who can sign in, from where and on what device, with multi-factor authentication enforced, so an external user or contractor only reaches what they should.

04Backup

An independent copy of your mailbox data, so accidental deletion or ransomware never means lost email.

Independent, tamper-proof cloud backup
Unlimited retention
Backups are tested monthly by us, to make sure the results match the reports

OpenText cloud backup

An independent, tamper-proof backup of your Microsoft 365 data, with unlimited retention, so accidental deletion or ransomware never means lost data.

How do we stack up?

A quick comparison of what's included as standard against the usual pieced-together approach many growing businesses end up with.

Feature	No IT support	Typical MSP	Munitus
Licence Management	Whatever licence was bought, never reviewed	Basic licensing, added piece by piece, rarely reviewed	Exchange Online Plan 1 and Entra ID P1 included, with regular licence reviews
Conditional access	No	Rarely set up for contractors and external users	Set up and managed on every mailbox
Multi-factor authentication	No	Optional, if anyone gets round to it	Enforced
Email signatures	Whatever each person types	Set up by hand, and inconsistent	Applied automatically, the same for everyone
Backup	None, relying on the mailbox alone	Local-only, or none at all	Independent cloud backup, unlimited retention, tested monthly
Support model	No formal support, whoever is free to help	Reactive break-fix, billed by the hour	Unlimited remote and on-site support

How our Service Desk performed last quarter

A managed service is only as good as what it delivers day to day. Here's how ours performed last quarter.

Q3 2026

Average first response: 21 min
Average time to resolve: 152 min
SLA adherence: 100%
Customer feedback score: 100%

Five steps to get started

Five straightforward steps, run by the same team who'll support you day to day, so there's no handover to a stranger once you're signed up.

Step by step

1Call
A short call about who needs a mailbox and how they will use it.
Book a call
2Review
We look at your external users and contractors, and what each needs to reach, before recommending anything.
3Proposal
A written proposal setting out scope and your pricing, ready to review before anything changes.
4Onboarding
Run by the same people who'll support you day to day.
5Ongoing Support
Continuous monitoring, proactive improvements and unlimited support, for as long as you're with us.

Not right for everyone?

The Managed Mailbox Stack is for people who only need email. If someone needs more, these options fit them better, and you can mix and match across your business.

The Essentials Stack

Microsoft 365 F3, backup, password management and unlimited support for frontline and shared-device teams.

Learn more

The Power Stack

Microsoft 365 Business Premium with desktop apps, telephony and compliance software, for office-based staff who each have their own device.

Learn more

See whether the Managed Mailbox Stack fits your team

Book a call and we'll walk you through what's included and what it would look like for your team. No hard sell.

Book a call