---
title: "Email and attachment storage"
description: "Every message body and attachment is stored whole as its own object, indexed per mailbox, with no storage cap on any plan and no timer that deletes it."
url: "https://openemail.uk/features/storage"
---

[Privacy & ownership](https://openemail.uk/features.md#trust)

# Your mail on object storage Every body and every file, in its own object.

Message bodies and attachments are stored as objects, one each, beside an index per mailbox. They stay until you delete them.

[Open mail](https://openemail.uk/mail/inbox) [Get Started](https://openemail.uk/signup.md)[All features](https://openemail.uk/features.md)

In short

## What is object storage?

Object storage keeps each piece of data whole, as one named object rather than rows in a table. It is cheap at scale and fetches by name, but cannot search inside an object, so a database usually sits beside it.

1

object per message body, and one more per attachment

4,000 characters

of each thread's newest message, kept in the index for search

0

timers that delete mail from your mailbox

How it works

## Scrolling reads the index, not bodies

The list and search read an index of senders, subjects, labels and excerpts. Bodies load only when you open a thread or pause on it.

## Object names are ids and hashes

Each name is your mailbox's id plus hashes or a random id. No subject, address or Message-ID appears in one.

## Kept until you delete it

Delete from Bin erases a conversation's index entry, bodies and attachments together. Until then, all of it stays.

What you get

## In the product today

No storage cap

No plan limits how much mail you keep, Free included.

Sent mail too

What you send is stored the same way, attachments included.

Scoped per address

Each thread records its address, and teammate access is checked against it.

Good practice

## Getting the most out of it

1. 01
   
   Delete from the Bin
   
   Binned mail stays stored in full until you delete it from the Bin.
2. 02
   
   Label what you will need
   
   Search words reach only each thread's newest message, so label the threads you will look for again.
3. 03
   
   Export before leaving
   
   Deleting a workspace erases its mail for good, so download it from Settings → Export first.

Where it stands

## Good to know

Questions

## Asked often

Keep going

## Works well with

Files

Every attachment this mailbox holds, in one place you can search, download and clear out.

Encryption at rest

Soon

Every field of a message sealed before it is written down (body, subject, addresses and attachment bytes), so a copy of the database is ciphertext rather than mail.

Take your mail with you

One download from Settings → Export with everything in it: every message and attachment as mbox files another mail app opens, plus your contacts, calendar, labels, rules, templates, notes and settings.

Start

## Your domain, your mail.

Point a domain at OpenEmail and read it in a mailbox built around it. The free plan covers one domain.

[Open mail](https://openemail.uk/mail/inbox) [Get Started](https://openemail.uk/signup.md)[Read the reference](https://openemail.uk/docs/knowledge/trust/storage.md)