Optus Email Not Working? – (7 Quick Ways to Fix!)

Wondering why your Optus email not working? This guide will answer most of your questions!

Optus’ emails are a great way to stay in touch and link your email with any application you need as per your device and operating system.

The Optus email system sometimes won’t work, and this guide is everything you need to resolve the problem.

When your Optus email is not working, verify that the used application is set up correctly, and check if your device is connected to the internet.

Let’s unwrap how all of this is done!

Optus Email Not Working – Quick Ways to Fix

Tip: Follow the solutions in chronological order!

1. Set Up Optus Email Correctly

The first and most crucial step is to set up your Optus mail correctly, based on the app you will use.

The operating system of your Optus device matters a lot because the mailing applications are different, and the correct way to set up the mailing system differs.

So, we’ve prepared a guide on what to do based on the device and system!

Microsoft Outlook 365 

If your Optus email is not working with Outlook, here’s what to do:

1. Open Outlook 365 on the device.
2. From the Menu, go to the File tab.
3. Then, click on the “Add Account.”
4. Insert your email address correctly.
5. Then go to the “Advanced Options.”
6. Check “Let me set up my account.”
7. Click on “Connect” and then “IMAP.”
8. Finally, insert the following settings:

• Outgoing Mail Server: mail.optusnet.com.au
• Incoming Mail Server: mail.optusnet.com.au
• Username: Your email name (before the “@”).
• Password: Insert your Optus email password.

Mail App for macOS

If your Optus email is not working on macOS, follow these steps:

1. Open the Mail app on your macOS.
2. From within the app, go to the “Mail”.
3. Go to “Preferences” → “Accounts.”
4. Click the “+” icon on the left-hand side.
5. Then, insert the following information:

• Name: Your full first and last name.
• Email: Your full Optus email address.
• Password: Your Optus email password.
• Account Type: Set to “IMAP” profile type.
• Description: Simply “OptusNet” correctly.
• Authentication: Set to “Password”.
• Incoming Mail Server: mail.optusnet.com.au
• Outgoing Mail Server: mail.optusnet.com.au

Mail App for iOS Mobile

If your Optus email not working on iPhone, here’s what to do:

1. Open the Settings on your iOS mobile.
2. Go to Mail → Accounts → Add Account.
3. Tap “Other” and then “Add Mail Account”.
4. Insert Username, address, and password.
5. Select “IMAP” and insert the credentials:

• Host Name (under incoming): mail.optusnet.com.au
• Host Name (under outgoing): mail.optusnet.com.au

Note: To change your email Fetch settings, go to Settings → Mail → Accounts → Fetch New Data → Push → select your fetch frequency.

2. Verify the Internet Connection

If your Optus email settings are configured correctly, but you can’t send/receive, you may need to check whether the internet connection on your device is intact. 

We recommend checking if you can surf online and whether the internet access on your device is affected.

If you’re offline, you must perform some troubleshooting, so here are a few methods:

• Power cycle your modem for 60 seconds.
• Reconnect your device to Wi-Fi/Ethernet.
• Forget and connect to your Wi-Fi network.

If you’re confident that your internet is intact, but your Optus email is not working, keep reading!

3. Check Your Network Port 25

A known bug with Optus email prevents the user from sending emails, but they can receive them, so if you’re within this scope, this solution is for you. 

The issue happens because Optus is blocking a port on your network, so to unlock this port, you’ll need a computer connected to the Optus network.

To solve the problem, you must run a command into the command prompt/shell/terminal based on your device’s operating system.

For Windows 8, 8.1, 10, and 11

1. On your computer, click on the Start Menu.
2. Then, type “PowerShell” and open the tab.
3. Then, write the following command correctly:

• tnc mail.optusnet.com.au -port 25

Note: If you’re using Windows 7, type the same command in the CMD (Command Prompt).

For macOS and OSX:

1. Open the Terminal on your Apple computer.
2. In the Terminal, insert the following command:

• curl -v telnet://mail.optusnet.com.au:25

If you see a message that tells you “Connected,” congratulations your email is working!

If you see a message telling you that your computer couldn’t connect to the Optus mail service on port 25, then you can solve the issue.

This is an issue that only Optus can fix, hence, you’ll need to contact them and discuss the resolution.

4. Check for ongoing NBN Outage

If you’ve tried all the steps and your Optus email is not working, you must check for an ongoing nbn outage.

When your services are temporarily down, your email won’t work hence, you can’t send or receive emails.

The quickest way to check for ongoing outages is by going to nbn Co Status and inserting your full address to check for geological outages. 

If there’s an outage, there isn’t much that you can do.

You must wait until the services are back and then check whether your Optus email is working.

If there are no outages, continue reading!

Note: Outages may last for hours!

5. Check for Exceeded Mail Limit

If you can send an Optus email but can’t receive it, check whether you’ve exceeded the Optus mail limitation.

You can use your third-party app to manage your emails or log into the Optus Webmail and go from there.

If your inbox is complete, you won’t receive any new emails until there is available space, so we recommend deleting emails you no longer need.

You can quickly delete unneeded emails by following these steps:

1. Sign in to the Optus webmail on your device.
2. First, go to Spam, check all emails, and Delete.
3. Then, from the menu, go to the “Deleted Items.”
4. In there, select all emails and erase everything.
5. Finally, enter the “Sent Folders” and clear them.

Reminder: Don’t forget to use the same Optus account!

6. Inspect Your Optus Account 

It’s possible that the Optus email system is not working because of a limitation or suspension lifted over your account.

This is why it’s essential to sign into your Optus account and check for any unpaid fees, inactivity restrictions, and unidentified access.

To check your billing information, you can use the Optus Website or My Optus App to find out whether the most recent payment has been processed.

You can discover the information under the “Billing” tab once you’re signed in to your Optus account.

If there are no restrictions on your Optus account, keep reading!

7. Reinstall the Mail Application

Still, asking why is my Optus email not working? Well, it’s probably due to the app you use!

The problem with the Optus email system may be caused by the third-party application that you are using.

Hence, the best way to solve potential issues with the mail software on your device is to perform a clean reinstallation by erasing the app entirely and then downloading it back clean.

How to Reinstall on Android?

1. Locate the Gmail app on your Android.
2. Tap and hold the icon of your mail app.
3. Drag Gmail to the Trash Bin to delete.
4. Then, enter the Google Play Store app.
5. Locate and download the Gmail app.

How to Reinstall on iOS Apple? 

1. On iOS mobile, locate the “Mail” app.
2. Tap and hold the icon of the mail app.
3. From the list, tap “Remove This App.”
4. Open the App Store app on the device.
5. Locate the “Mail” app and download it.

How to Reinstall on Windows?

1. Open the Microsoft Store on the PC.
2. Locate the “Mail and Calendar” app.
3. Then, click on the three-dot menu.
4. Select “Uninstall” and then “Install.”

How to Reinstall on macOS? 

1. From the Launchpad, go to “Applications.”
2. Find the “Mail” application and hold the icon.
3. Click on the “X” mark to uninstall your app.
4. Restart and turn on the PC in Recover Mode.
5. Click “Reinstall macOS but keep information.”

When the messaging app you’re using for Optus emailing is reinstalled, go back and configure the settings, as shown earlier in this guide.

When you’re ready, check whether the problem is now solved, and if not, the problem may not be on your side.

Note: Contact Optus Customer Support for more assistance!

Quick Recap:

Whenever Optus email not working, you must verify that the settings in your mail app are correctly configured.

Also, ensure that your device is connected to the internet, check for ongoing nbn outages, check your email limit and perform a clean mail app reinstallation.

Follow us for more Optus solutions and troubleshooting!