Set up Optimum (optonline.net)
in any email app.
The correct IMAP, POP3 and SMTP settings for Optimum (optonline.net). Use these with BlueMail, Outlook, Apple Mail, Thunderbird or any other mail client.
Instead of using Optimum's webmail interface, you can use a mobile or desktop email app like BlueMail, Outlook, Apple Mail or Mozilla Thunderbird. Desktop email apps offer more features, faster access and offline reading. Your messages are right there even without a connection.
How to set up Optimum in BlueMail
- Get BlueMail. Install BlueMail free on iOS, Android, Mac, Windows or Linux, or open web.bluemail.me in your browser.
- Add your account. Open BlueMail and tap Add Account, then choose Email.
- Sign in with your Optimum address. Enter your full Optimum email address and password.
- Let BlueMail find the settings. BlueMail detects the correct Optimum servers automatically. If you're asked to enter them manually, use the settings below: incoming mail.optimum.net and outgoing mail.optimum.net exactly as listed.
- Done. Your Optimum inbox appears and stays in sync on every device you sign in on.
Your username is the Optimum ID — not the full address
Optimum is the odd one out: sign in with just your Optimum ID — the part of your address before the @ — rather than the full email address, using your normal password (no app password). The same mail.optimum.net servers work for @optimum.net and @optonline.net addresses. Optimum email closed to new accounts in May 2021, but existing mailboxes continue to work.
Incoming mail
| Optimum: Incoming (IMAP) | |
|---|---|
| Server | mail.optimum.net |
| Port | 993 |
| Security | SSL/TLS |
| Username | Your Optimum ID (the part before the @) |
| Password | Your Optimum password |
| Optimum: Incoming (POP) | |
|---|---|
| Server | mail.optimum.net |
| Port | 995 |
| Security | SSL/TLS |
| Username | Your Optimum ID (the part before the @) |
| Password | Your Optimum password |
Outgoing mail
| Optimum — Outgoing (SMTP) | |
|---|---|
| Server | mail.optimum.net |
| Port | 465 |
| Security | SSL/TLS |
| Username | Your Optimum ID (the part before the @) |
| Password | Your Optimum password |
One-tap setup with BlueMail
You don't have to enter any of this by hand. BlueMail recognizes Optimum automatically — just enter your email address and password, and we'll handle the rest. Available free on iOS, Android, macOS, Windows and Linux.
Download BlueMail