Yes, email stored on the server counts towards your hosting account's total disk space. This includes all messages in every email account's inbox, sent folder, drafts, trash, and any custom folders. Here is how email storage works and how to manage it.
Email, website files, and databases all share your disk quota
Your hosting plan's disk space is a single pool shared by your website files (in public_html), your databases, and all your email accounts. A mailbox full of attachments can quietly consume a large portion of your account's total storage.
01. How Much Space Is Email Using?
To check email usage per account:
- Log into cPanel at my.ultrawebhosting.com
- Go to Email > Email Accounts
- Look at the usage bar next to each account. It shows how much space that mailbox is using relative to its individual quota.
To see your overall account usage: check the right sidebar in cPanel under "Statistics" for total disk usage. This includes files, databases, and email combined.
02. Managing Email Storage
- Empty Trash and Junk folders - These are the easiest wins. Deleted messages sit in Trash until you empty it, and spam sits in Junk. Both count towards your quota.
- Delete old messages with large attachments - A single email with a 10MB PDF attachment takes 10MB of disk space. Sort by size in webmail to find the biggest offenders.
- Use IMAP and clean up from your desktop client - If you use Outlook or Thunderbird with IMAP, deleting messages there also deletes them from the server (after you empty the trash).
- Set individual mailbox quotas - In cPanel > Email Accounts > Manage, set a quota for each account so one user cannot consume all the disk space.
- Consider archiving old email locally - Download old messages to your desktop using POP3 (which removes them from the server) or export them from webmail.
If you use POP3 and have it set to delete messages from the server after download, your email will not accumulate on the server. If you use IMAP, all messages stay on the server (which is why you can see them from multiple devices). IMAP is more convenient but uses more server disk space. See POP3 vs IMAP for a full comparison.
03. What Happens When You Run Out of Space
If your email accounts fill up their individual quotas, new incoming messages will bounce back to the sender with a "mailbox full" error. If your overall hosting account fills up, both email and website operations are affected: you cannot receive email, upload files, or write to databases.
For a full guide on disk space management, see Understanding and Managing Disk Space.
Running Low on Space?
If you need more disk space for email or are having trouble managing storage, we can help.
Open a Support TicketQuick Recap
- Yes, email counts towards disk space - Shared with files and databases
- Check per-account usage in cPanel > Email > Email Accounts
- Empty Trash and Junk first - Easiest way to reclaim space
- IMAP keeps everything on the server - POP3 with delete-after-download saves space
- Set mailbox quotas to prevent one account from filling the entire disk
Managing email storage on your hosting account · Last updated March 2026 · Browse all Email articles
