OptiMail is our address data toolkit: everything you need to keep customer addresses accurate, whether they're being typed in for the first time or already sitting in your database.
It works in real time, checking and correcting addresses as they're entered at your checkout, on a form or in your CRM. And it works on the data you already hold, cleaning, protecting and enriching the records you've built up over the years.
Either way, the result is the same: addresses you can trust, so nothing turns into a failed delivery, a wasted mailing or an unhappy customer on the phone.
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Check and validate your existing customer addresses, before you ship an order or send a mailing.
Postcode-to-address lookup. Your customer types a postcode; the right address appears. Faster checkout, no typos.
Removes contacts who've moved away and can't be traced, so you're not paying to reach people who'll never see it.
We audit, clean, protect and grow the database you already hold, so every record is accurate, deliverable and worth mailing.
Officially licensed by Royal Mail — built on the real address database, kept current.
Usage-based pricing, no monthly fee — you pay only for what you use.
29 million UK addresses.
Works with what you've got — API, CRM, and a Shopify app.
Covers both fronts — real-time validation as data arrives, plus full cleansing of the data you already hold.
Backed by 40 years of address expertise — and we use it ourselves, every day.
Say you ship 10,000 orders a month. Across UK retail, around 8% of first-time deliveries fail, and most of those failures come down to address data. Take a conservative 3% failing on address issues alone — that's 300 a month.
At the UK average of roughly £12 per failed delivery, that's over £43,000 a year lost to redelivery, refunds and support time — before you count the damage to repeat custom (84% of shoppers won't return after one poor delivery).
Checking addresses as they're entered costs a fraction of that — you only pay 45p when we actually fix an issue. And with Data Services, you're left with a cleaner list of customers who'll receive what you send and are ready to buy.
A predictable cost in; a much larger, unpredictable cost out. That's the trade.
Around one in five addresses typed online contains an error.
Every one is a delivery that might fail, a catalogue that won't land, or a customer you won't see again.
OptiMail fixes them at the source, so your data works from the first click — backed by 40 years of getting addresses right, from the people who helped invent postcode lookup.
Send us a sample of your data and we'll give you a free, no-obligation audit — what's wrong, what it's costing you, and how to fix it.
Speak to our team