How to use Roundcube webmail on cPanel hosting

Roundcube is the webmail app included with cPanel email. It lets you read and send mail from any browser without setting up Outlook or a phone. Everything you do there is stored on the server over IMAP, so it stays in sync with your other devices.

Before you start

• An email account created in cPanel and its password. See create email accounts in cPanel.

Log in to webmail

• Go to https://yourdomain.com:2096 or https://webmail.yourdomain.com.
• Enter the full email address as username and the mailbox password. Click Log in.
• Account owners can also open it from cPanel → Email → Email Accounts → Check Email without a password.
• If the webmail home screen asks which app to use, choose Roundcube and tick Open my inbox when I log in.

Port 2096 is blocked on some networks; then use https://yourdomain.com/webmail. Read more in fix webmail login problems.

The Roundcube screen

• Left: folders: Inbox, Drafts, Sent, Spam, Trash and your own.
• Middle: message list. Click a column header to sort; use the Search box at the top with the drop-down to search subject, from, body or all folders.
• Right: preview of the selected message, with Reply, Reply all, Forward, Delete, Mark and More (print, download, show source).

Write and send a message

1. Click Compose.
2. Enter recipients in To; click Cc or Bcc to add more. Addresses are suggested from your contacts.
3. Type the subject and message. Switch to HTML in the editor toolbar if you want formatting.
4. Click Attach or drag files onto the window. The size limit for one message is usually around 50 MB, and the recipient's provider may accept less.
5. Click Send. A copy is saved in Sent.

Organise with folders

1. Open Settings → Folders, click + Create, name the folder and choose a parent.
2. Drag messages from the list onto a folder to move them; hold Ctrl to copy.
3. Untick Subscribed to hide a folder without deleting it.

To file mail automatically, create filters in Roundcube or cPanel email filters.

Spam and deleted mail

• Select a message and click Mark → As spam or move it to the Spam folder. Messages flagged by SpamAssassin can be delivered there automatically.
• Deleted mail goes to Trash. Right-click Trash (or use the folder menu) and choose Empty to free space.

Troubleshooting

• "Login failed": use the full email address and reset the password in cPanel if needed.
• Cannot attach a file: it is larger than the upload limit. Share it with a download link instead.
• "Mailbox full" warnings: see fix a full mailbox.

Next steps

• Set a signature and identities in Roundcube
• Import and export contacts
• Set up email on Outlook or your phone