Trust
An agent acts. A person stays accountable.
A posted letter costs money, cannot be unsent, and lands on someone’s doormat. This page sets out who is responsible for each one, what we check, and what we keep.
Who can send
We do not offer anonymous sending. Every letter traces back to a verified person or company.
Verified account
An email address and a payment card are confirmed before a live key exists.
Verified sender
The sender name and return address are checked once, then printed on every letter. An agent cannot change them. Both belong to the person who verified the account by email and card.
First letters reviewed
A person at Atomside reviews each new account’s first five live letters before they print.
Approval by default
New keys hold every letter for a person to approve until the account owner changes that.
Collecting debts for someone else
Chasing your own invoices is fine.
Unsolicited consumer marketing
No cold mailshots to people at home.
Impersonation
A letter must come from who it says it does.
Threats or harassment
No threatening, abusive or harassing letters.
What we keep on record
For each letter, enough to show what was sent, when, and on whose say-so.
- the file
- The exact PDF that was printed, and a hash of it
- the request
- Which key asked, and the idempotency key it used
- the approval
- Who approved it, or which budget rule let it through
- the stages
- A timestamp for quote, approval, print and dispatch
- retention
- [How long records and letter contents are kept, and how to delete them]
Data and suppliers
Where data is held
In the UK or EU. The provider is named here before launch.
Who prints your letters
[Named UK print supplier, once the agreement is signed]
Data protection
[UK GDPR role, data processing agreement, ICO registration]
Keys and webhooks
Keys are shown once and stored hashed. Webhooks are signed.
Reporting a letter
Received something you should not have? Tell us the sender’s name and the date it arrived at abuse@atomside.com.
Service status
A public status page opens at launch.
The company
Avoxy Technologies Limited, trading as Atomside
Registered in England and Wales 16613235
The Old Bakery, 90 Camden Road, Tunbridge Wells, TN1 2QP
hello@atomside.com
Atomside is an independent service. It is not affiliated with, or endorsed by, Royal Mail. Letters are posted through Royal Mail by our print supplier.
See the controls for yourself
No card. Test mode is free and posts nothing.