Email Migration · London
Email Migration in London
Moving London organisations' email between providers without losing messages or dropping delivery. The step that decides whether it goes smoothly is authentication — sending records need updating for the new provider, and a move that ignores them results in mail landing in spam folders for weeks afterwards.
Why this comes up
The problem
Email must move to a new provider, the business cannot lose messages or miss enquiries, and the last attempt left mail arriving in customers' junk folders.
What you get
What we deliver
- Full mailbox inventory including shared, archive and rarely-used accounts
- Messages, folders and calendar data copied ahead of the switchover
- Sending authentication records updated and verified for the new provider
- Mail routing changed with a shortened record lifetime to limit the transition window
- Forwarding rules, aliases and distribution lists recreated rather than forgotten
- Deliverability monitored afterwards, since problems appear over days not minutes
Want this scoped for your business in London?
Thirty minutes, no charge, no sales script. You leave with a written summary of what email migration would actually involve — whether or not you use us.
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 365
- Google Workspace
- Cloudflare
- MXToolbox
Who we work with
Industries we serve
- Professional services
- Retail
- Manufacturing
- Nonprofits
- Healthcare
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
- Step 1
Free consultation
A 30-minute call to understand the problem. You keep the written summary either way.
- Step 2
Proposal
Scope, timeline and a fixed price, in writing, before anything starts.
- Step 3
Build
Short cycles with regular check-ins, so you see progress rather than hear about it.
- Step 4
Launch and support
We handle the go-live and stay available afterwards.
Other services in London
Looking for the full picture? See our Email Migration services, everything we do in London or browse everything we do.
Email Migration in London — common questions
- Why does mail go to spam after a migration?
- Because sending authentication no longer matches. Records that tell receiving servers who may send on your behalf still point at the old provider, so legitimate mail fails checks. Updating them as part of the move, and verifying them afterwards, prevents weeks of deliverability problems.
- Will we lose messages?
- Not with a proper cutover. Mail is copied in advance and synchronised again before the switch, so the exposure is a short window during which delivery queues rather than fails. Losses generally happen where routing was changed before the copy finished.
- What gets forgotten?
- Aliases, forwarding rules, distribution lists and the addresses used by other systems — the accounts receiving website enquiries, scanner output or supplier notifications. These are invisible until something stops arriving, usually a fortnight later.
- How long does the transition take?
- Copying can run for days on large mailboxes without affecting anyone; the disruptive part is a routing change measured in hours. Reducing the record lifetime a day or two beforehand shortens that window considerably and is the simplest improvement available.
- 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 Email Migration 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