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Zimbra expertise for the email you cannot afford to lose.

Leaving Exchange, recovering a migration that has stalled, or keeping a large Zimbra platform running: In-Tuition Networks has done this work for UK councils, healthcare providers and a FTSE 100 brand. UK-owned, and running Zimbra in production since 2006.

350,000
Mailbox platform upgrade for a US healthcare provider.
130,000
Mailbox highly complex migration for a FTSE 100 brand.
Since 2002
Building and running critical email platforms, and one of the first Zimbra Gold Partners in Europe.

Zimbra platforms rarely fail on software. They fail on delivery.

Problems usually originate in the engineering behind the platform: a partner that supplied the licence and withdrew, a migration that has missed successive deadlines, or a disaster recovery plan that has never been tested.

In-Tuition Networks has built and operated Zimbra platforms for UK county councils on government secure networks, for healthcare providers in Europe and the US, and for a FTSE 100 UK brand. Organisations and Zimbra partners engage us when the work is too important to fail.

If your current partner is no longer responsive, or you cannot obtain a clear account of your recovery position, we would welcome a conversation.

“There were many moments where they could have reasonably said ‘no’ and referred to contracts, but instead got stuck in and delivered solutions. Their approach was straightforward and refreshing.”

Steven Tredinnick, Head of IS Projects

Where is your Zimbra platform letting you down?

Nobody can say whether it is secure, or whether it would survive a failure. It has outgrown the servers it runs on. A migration to it cannot slip again. Your team cannot watch it around the clock. Each service below answers one of those problems, and each prepares the next.

Professional services

Zimbra health check

Security · Performance · Backups · Disaster recovery

De-risk your current Zimbra environment. You receive a list of findings ranked by risk, each with a recommendation drawn from more than 20 years of running Zimbra in production, so you know exactly where your platform stands.

Zimbra builds

Security hardening · Single server · Multi-server · Complex builds

A Zimbra platform that is secure and documented from day one, at a cost you know before work starts, on your own infrastructure or in your own cloud account. More than 20 years and hundreds of builds go into its design.

Cloud infrastructure

An AWS organisation you own · Compliance and governance · S3 mail storage · Disaster recovery

The AWS environment your Zimbra platform runs in, built in an organisation you own, with compliance and governance designed in, S3 mail storage and disaster recovery in a second region.

Zimbra migrations

Self service · Done for you · Complex migrations

Having migrated millions of mailboxes, we know where the hidden pitfalls lie, and we keep your users clear of them. Run the migration yourself with our software, have us run it for you, or, for large, complex or regulated estates, hand it to us as a full project.

Zimbra customisation and integrations

Single sign-on · Themes · Third-party integrations · Zimlets

Zimbra, shaped to the way your organisation works. Examples include a branded single sign-on and customer service centre that runs outside Zimbra, custom Zimbra themes and interface changes that redeploy themselves at every upgrade, Zimlets for both the Classic and Modern web clients, and deep integrations with Mattermost chat and Nextcloud files.

Zimbra training

Administrators · Help desk · Train the trainer

Courses for administrators and help desk teams, based on official Zimbra curricula and infused with real-world experience from a Zimbra certified trainer with more than 20 years of hands-on management of critical mail systems.

Management and support

Security patching · Upgrades · Full management · Remote support

From a reactive support agreement that backstops your own engineers, to full management where we take primary responsibility for your platform, backed by service level agreements and evidenced by years of experience.


Stop worrying about your Zimbra platform.

Whether it is security, a migration that cannot slip or a team stretched too thin, one call will show you the way forward, and we will follow up with your options in writing.

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Zimbra partners

If you provide Zimbra to your own customers, we can be the specialist expertise in the background, across the same services, helping your service succeed.

Tell us about your service