Walkthrough · Beginner · 20 minutes
How to Free Up Mailbox Storage
How to reclaim space before senders start collecting bounce messages, without the guessing — the steps in order, the snag ahead of time, and the tip our support team repeats daily.
The short answer
One line covers it: reclaim space before senders start collecting bounce messages — a beginner-level job of roughly 20 minutes.
Below are the precise steps, the classic stumble, and one tip from the support desk. Wherever the platform already does a step for you, the guide says so rather than handing you a machine's chores.
By the Hosting & Domains team · Reviewed 18 August 2026
Beginner
Experience required
5
Stages, start to finish
Free
Support included
Proven
On the platform itself
No prior knowledge assumed — a hosting account, a browser and 20 minutes of attention is the whole entry requirement. Every instruction runs on our platform exactly as printed, and carries over to any standard cPanel host.
First rule: read the snag section before you start, not afterwards. It was distilled from the tickets of everyone who tried the other order.
The route, mapped end to end
Set out end to end, the route is: locate where the bulk sits, empty the automatic folders, move older years onto local storage, target attachments head-on and give more room where the growth is genuine.
No part of this needs code or a terminal unless the guide says so plainly — and where it does, the exact commands are printed. The step-by-step is below, with the surrounding sections supplying the context that makes it hold.
One caution before you click anything
Deleting from the inbox while Trash keeps every byte. Most clients soft-delete, so the space only returns once Trash is emptied. When a cleanup frees nothing, it nearly always stopped one folder too soon.
Forewarned is genuinely forearmed here. This one mistake accounts for most of the frustration the topic ever causes — and it disappears entirely once somebody points it out.
What we tell every customer
Put an alert at eighty per cent, or failing that a reminder in the diary. A full mailbox rejects incoming mail, and from the sender's side your address simply looks broken, invariably on the day something important arrives.
A minute spent now repays itself every time this job comes round again — and like almost every hosting job, come round it will.
What a Hosting & Domains plan spares you
Some steps in this guide exist only because hosting traditionally forced them on you. Here the SSL issues itself, the copy is taken daily without being asked, and one-click installers remove the manual setup. What is left is the part that was always genuinely yours.
Stopped mid-guide at an awkward hour? That is exactly what round-the-clock support is for — say which step you are on and we take it from there.
The hosting these steps were tested on
Tutorials written against imaginary hosting go stale fast. Ours are written against the real thing: the same panel, installer and defaults waiting in your account.
Order an annual plan and the first year of the name's registration is on us.
- Every step checked exactly as published
- The snag named before it arrives
- The dull steps taken out of your way
- People reachable at any hour you stall
Why Hosting & Domains
Standard on every plan
Help that keeps your hours, not ours
Stuck on step three at midnight? Support answers at any hour, mid-walkthrough included.
Jargon never charges you
Every term is defined on the spot or linked to the jargon buster — nothing assumes prior knowledge.
5 steps, nothing padded
Each stage is a few minutes of steady clicking, and the fiddly moments are labelled fiddly.
The dull parts automated
SSL, backups and installs look after themselves here, leaving the guide to cover only what is genuinely yours.
The snag, flagged up front
The classic error for this particular task is named before step one, which is how 20 minutes stays 20 minutes.
Works exactly as printed
Every step is proven on the platform we run — none of the 'your host may vary' hedging.
Quick Start
Order placed to site online
- 1
Locate where the bulk sits
cPanel's Email Accounts screen reports usage per mailbox, and inside one you can sort by size. A decade of mail usually turns out to be a few attachment-heavy threads with a long tail behind them.
- 2
Empty the automatic folders
Sent, Trash and Junk grow while nobody is looking. Sent is the classic culprit, since it quietly keeps a copy of every file you have ever attached for anyone.
- 3
Move older years onto local storage
Pull earlier years into local folders in a desktop client, or export them into a file you store somewhere safe. The history survives and the server space comes back at once.
- 4
Target attachments head-on
Search the account by size or by attachment. Move the files that genuinely matter into proper storage, then delete the messages that existed only to carry them.
- 5
Give more room where the growth is genuine
Sometimes a busy sales mailbox has simply outgrown its allocation. Change the quota in the panel rather than fighting a cleanup battle you are bound to lose again next quarter.
Built In
Fitted to every plan
- No set-up charge at any point, and no joining fee
- Staging copies for trying a change before it goes live
- Upgrades applied in place, with no migration when you change plan
- WebP image optimisation built in, at no extra charge
- PHP versions set per site from the control panel
- Money back within 30 days on hosting plans, 7 on reseller
- WordPress and 400+ further applications installed in one click
- NVMe SSD storage on every tier, not only the dear ones
- Free SSL on every plan, reissued before the old one lapses
- WordPress Toolkit, with the updates seen to for you
Frequently Asked
The questions that come up most
What does a mailbox do once it reaches its quota?
New mail goes straight back to the sender, which from their point of view means your address no longer works. That failure mode is exactly why acting early, with a cleanup or a quota rise, beats tidiness for its own sake.
I deleted mail in webmail and the space has not come back — why?
Because deletion happens in two stages in nearly every client: space is only freed once the Trash or Deleted folder is emptied. Check the usage figure in cPanel afterwards to confirm the reclaim really happened.
What happens when I outgrow the plan?
You upgrade in place. Plan changes are made from the client area with no migration and no downtime, and the range runs from small shared accounts through VPS to full dedicated machines. Growth becomes a setting on the account rather than a search for a new host.
Can I transfer in a name I already own?
Yes, and it is routine. Unlock the name at your current registrar, take the auth code, and start the transfer from your client area. Whatever registration time remains carries over, and DNS keeps resolving the whole way through.
Keep reading
How to Force HTTPS on Your Site
Every arrival sent to the encrypted address, with nobody left behind on http — beginner level, about 10 minutes.
How to Install an SSL Certificate
A certificate issued, fitted and renewing itself, often before you think to ask — beginner level, about 0–20 minutes.
Mailbox Quota (Glossary)
The plain-English definition this page rests on, with a worked example.
Node.js Hosting
Run Node.js applications beside your sites, with SSH and Git included.
WordPress Hosting
WordPress looked after for you — LiteSpeed caching, staging copies and a daily backup.
Changing hosts? Run through our checklist first.
A plain order of work for a move nobody visiting will notice: which files go over first, how to carry the mail across without losing a message, when exactly to repoint DNS, and the two mistakes behind nearly every outage we are asked to rescue.
The name is waiting.
NVMe hosting with SSL and the migration included, people answering at any hour, and a price that stays where it was.
View Node.js Hosting plans