Using Webmail (Roundcube) — Complete User Guide

Webmail is the browser-based way to read your iWebVault email. Useful when you’re on a borrowed computer, when you don’t want to configure a mail client, or when you just need to fire off a quick reply from anywhere. cPanel ships with Roundcube — clean, fast, and capable enough that some customers use it as their primary mail interface.

Accessing webmail

Three URLs work, all reaching the same login screen:

• https://yourdomain.com/webmail — friendliest URL, works once DNS and SSL are active.
• https://yourdomain.com:2096 — direct port access, even bypasses some redirects.
• https://[server-hostname]:2096 — works if DNS is broken.

Log in with your full email address (you@yourdomain.com) and mailbox password. Not your cPanel password — those are different.

If two webmail apps appear (Roundcube and Horde), pick Roundcube. Cleaner interface, modern look, faster.

The Roundcube interface

Left column: folders (Inbox, Sent, Drafts, Spam, Trash). Middle column: message list. Right column: preview pane (or full-window view for the open message).

Top toolbar: Compose, Reply, Reply All, Forward, Delete, Mark, Move, More. Bottom of folder list: Settings (gear icon).

Composing email

1. Click Compose.
2. Fill in To, Cc, Bcc, Subject.
3. Type the body. Toolbar above the editor lets you switch between Plain Text and HTML mode.
4. Attachments: drag files in, or click the paperclip icon.
5. Send at the top right.

Save as Draft instead of Send if not ready — drafts appear in the Drafts folder and can be edited later.

Setting up your signature

1. Click Settings (gear icon).
2. Identities.
3. Click your address.
4. Signature field — type or paste. HTML signatures supported.
5. Check HTML signature if pasting formatted content.
6. Save.

Signature auto-inserts into every new compose. To customize per-message, the compose window’s editor lets you edit it before sending.

Identities — sending as multiple addresses

If you have multiple addresses on the same mailbox (e.g. via aliases) and want to send as either:

1. Settings → Identities → Create.
2. Add the new identity (Display Name, Email — must be an address you actually have permission to send as).
3. Set signature for it.
4. Save.

Compose window now offers an identity dropdown at the top — pick which “From” to use.

Filters in webmail

Settings → Filters (uses Sieve, the IMAP filter standard). Different from cPanel’s Email Filters page — Roundcube’s Sieve filters are tied to your IMAP account and apply regardless of how you access it (webmail, phone, desktop client).

1. Settings → Filters → click your filter set (or create one).
2. Click + to add a rule.
3. Configure: “Match all”, “From contains”, “Subject contains” etc.
4. Action: Move to folder, Discard, Reply with message, Forward to.
5. Save.

Useful filters:

• From contains “@notifications.” → folder Notifications.
• Subject contains “[NEWSLETTER]” → folder Reading.
• Spam Flag is YES → folder Junk (move flagged spam out of inbox).

Folder management

Right-click any folder for options: Empty, Subscribe/Unsubscribe, Manage folders.

Create folders for organization: Settings → Folders → Create → name → save. Drag messages into the folder.

Folders sync over IMAP — what you create in webmail also appears in your desktop and phone mail clients. Same goes for messages: read in webmail, read on phone — they stay synced.

Searching

Search box top of message list. Click the dropdown beside it for search scope: Subject, From, To, Body, Entire Message.

Combine for precision: From a specific sender within Spam folder, Subject contains a phrase within a date range, etc. Search is server-side and indexes everything — even searching gigabytes of mail returns quickly.

Address book

Click the address book icon in the top bar. Add contacts manually, or right-click any email address in a message → Add to address book.

Address book is tied to the mailbox. Multiple devices accessing the same IMAP account share the same address book.

Import contacts: address book → Import button → CSV or vCard file.

Webmail vs. desktop client

Best practice: use a desktop/phone mail client as your primary, with webmail as a fallback when you’re on someone else’s computer. IMAP keeps both perfectly synced.

Common webmail issues

“Logged in but inbox is empty.” Folder subscription issue. Settings → Folders → check Inbox is subscribed. Try refresh.

“Compose window loses content if I navigate away.” Save as Draft frequently. Drafts auto-save every few minutes but explicit Save is safer for long messages.

“Login screen says password incorrect, but my desktop client works.” Check you’re entering the full email address (not just the local part) and the mailbox password (not cPanel password).

“Attachments fail to upload.” File too large (Roundcube limit is typically 50 MB). For larger files use a sharing service (Dropbox, Drive) and email the link.

“Some text in messages displays as gibberish characters.” Encoding issue. Top of message → triple-dot menu → choose a different character encoding (UTF-8 first, then Western European).

What’s next

• Setting up a desktop or phone mail client: Device setup guide.
• Managing mailbox quotas: Mailbox full fix.
• Forwarders and filters at server level: Mail routing guide.

Webmail handles the basics well and is always there as a fallback. Once you understand the interface, you can pick up any iWebVault mailbox from any computer with a browser and be productive in seconds.