First Login

This page walks you through logging in to Opterius Mail for the first time, explains what credentials to use, and describes the layout you will see after a successful login.

Finding the Login URL#

How you access Opterius Mail depends on how it was installed:

If you are not sure which URL to use, contact the person who manages your hosting server or check with your hosting provider.

What Credentials to Use#

Opterius Mail uses IMAP authentication — your login credentials are your email address and the password for that email account, exactly the same credentials you would use in Outlook, Thunderbird, or Apple Mail.

• Email address: your full email address, e.g. alice@example.com
• Password: the password for that email account on the mail server

Important: There is no separate Opterius Mail account, and there is no "sign up" or "register" link. Your account exists on the mail server. Opterius Mail simply authenticates against it.

Where do I get my email credentials?#

• If you use Opterius Panel: Your email accounts are managed in the Panel under Email → Accounts. Your password is what you set when creating the account there.
• If you use a different control panel (DirectAdmin, cPanel, etc.): Your email credentials are managed in that panel.
• If you are the mail server admin: Credentials come from Dovecot's user database (typically /etc/dovecot/users or a MySQL-backed virtual user table).

The Login Page#

When you open the Opterius Mail URL, you will see a login form with:

• Email address field
• Password field
• Remember me checkbox — if checked, your session persists for up to 30 days. Uncheck it on shared or public computers.
• Sign in button

Type your full email address and password, then click Sign in.

After Login#

On a successful login, you are taken directly to your Inbox. The layout consists of:

• Left sidebar: folder list (Inbox, Sent, Drafts, Trash, Spam, and any custom folders), with unread count badges
• Message list: the messages in the currently selected folder
• Message pane: the currently open message (or empty on first load)
• Top bar: search bar, compose button, account menu, and settings link

Your unread message count is displayed in the page title and on the Inbox badge in the sidebar.

If Login Fails#

If you enter the correct email and password and still cannot log in, here are common causes:

If you are the server admin and login is failing for all users, see Connecting to Your Mail Server for IMAP troubleshooting.

Changing Your Password#

Opterius Mail cannot change your password — it does not store passwords and has no write access to the mail server's authentication database. The login page does not include a "Forgot password" link for this reason.

To change your email password:

• Opterius Panel users: Log in to the Panel and go to Email → Accounts → Change Password.
• Other setups: Use your mail server's admin interface or control panel.

Once you change your password, it takes effect immediately. Your next Opterius Mail login will require the new password. Any existing "Remember me" sessions will be invalidated.

Two-Factor Authentication#

If you or your admin has enabled 2FA on your account, after entering your email and password you will be taken to a second screen asking for your 6-digit TOTP code from your authenticator app. Enter the current code and click Verify.

If you have lost access to your authenticator app, you can use a recovery code on this screen. See Recovery Codes.