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Outlook Integration · London

Outlook Integration in London

Integrating Outlook and Exchange for London organisations, where the permission type decides the blast radius. Delegated permissions act as a signed-in user and reach only their mailbox; application permissions reach every mailbox in the tenant — and the second is frequently granted because it was simpler to configure than to scope.

Why this comes up

The problem

The integration holds application-level mail permissions, so it can read every mailbox in the organisation.

What you get

What we deliver

  • Delegated or application permissions chosen against the actual requirement
  • Application access scoped to specific mailboxes where that route is necessary
  • Consent documented, since tenant-wide grants are a governance decision
  • Change notifications used rather than polling mailboxes for new messages
  • Recurring meetings handled as series with exceptions, not individual events
  • Throttling handled, as sustained mailbox access is rate limited

Want this scoped for your business in London?

Thirty minutes, no charge, no sales script. You leave with a written summary of what outlook integration would actually involve — whether or not you use us.

Book a 30-minute call

Working in London

London

London clients usually come to us because they want senior people actually on their project rather than a large agency's B team, and because Midlands rates buy considerably more delivery per pound.

Clients here are usually replacing an agency, and want senior people on the work at rates that are not Central London rates.

Sectors we work with in London

  • Financial Services
  • Professional Services
  • Technology
  • Media
  • Hospitality
  • Retail

What we work with

Technologies and platforms

  • Microsoft Graph
  • Outlook
  • OAuth
  • C#

Who we work with

Industries we serve

  • Professional services
  • Financial services
  • Healthcare
  • Public sector
  • Manufacturing

Why us

Why London businesses choose Asionis

  • Projects typically launched within 4–8 weeks
  • No long-term contracts required
  • All team members UK-based
  • Dedicated account manager and development team
  • Transparent reporting with monthly performance metrics
  • Scalable from startup to enterprise

How we work

  1. Step 1

    Free consultation

    A 30-minute call to understand the problem. You keep the written summary either way.

  2. Step 2

    Proposal

    Scope, timeline and a fixed price, in writing, before anything starts.

  3. Step 3

    Build

    Short cycles with regular check-ins, so you see progress rather than hear about it.

  4. Step 4

    Launch and support

    We handle the go-live and stay available afterwards.

Outlook Integration in London — common questions

What is the difference in practice?
How much the integration can see. Delegated access is bounded by the user it acts for; application access covers the tenant unless deliberately restricted — so an integration needing one shared mailbox should not be granted the ability to read all of them.
Can application access be limited?
Yes, to specified mailboxes through an access policy. It requires configuration rather than being the default, and it is what makes application permissions proportionate — a shared inbox integration reaching only that inbox rather than everyone's.
Why does consent need documenting?
Because a tenant-wide grant is an organisational decision with real implications. Recording what was granted, to which application and why gives whoever reviews access later something to assess — rather than an approved permission nobody can account for.
Should we poll for new mail?
No — use change notifications. Polling mailboxes is slow, hits throttling and delays the response, whereas a subscription notifies you when something arrives, which is both lighter and what makes mail-triggered workflows feel immediate. Subscriptions expire and need renewing, so that renewal has to be part of the design rather than something noticed when notifications quietly stop.
Do you work with businesses across Greater London?
Yes. We are based in Leicester, United Kingdom and work with clients throughout London, including London and the surrounding Greater London area. Most collaboration happens remotely, and we travel for kick-offs and key milestones.
What kind of London businesses do you usually work with?
Clients here are usually replacing an agency, and want senior people on the work at rates that are not Central London rates. Beyond that we work across Financial Services, Professional Services, Technology, Media, Hospitality and Retail.
Do you cover the areas around London?
Yes — we work throughout London, including Reading, Milton Keynes, Cambridge, Brighton. London is an urban area of roughly 9,000,000+, and we take on work across the wider Greater London region rather than the city boundary alone.

Talk to us about Outlook Integration in London

A 30-minute call with someone who would actually work on it. No sales script, no obligation.

  • Projects typically launched within 4–8 weeks
  • No long-term contracts required
  • All team members UK-based
  • Dedicated account manager and development team
  • Transparent reporting with monthly performance metrics
  • Scalable from startup to enterprise

Or reach us directly

07707 771599admin@asionis.com

Leicester, United Kingdom