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How to Backup Optus Email on Windows & Mac PC: Safe Methods

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Published By Jamie Kaler
Rollins Duke
Approved By Rollins Duke
Published On August 8th, 2026
Reading Time 7 Minutes Reading
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Summary: All business users and end users are aware of how important it is to make a local copy of their email data, and Optus Webmail users are no exception. The webmail interface however does not provide that easy and direct option to backup Optus emails. Optus Webmail is one of the most popular email providers in Australia. The email service with the`@optusnet.com.au` domain is one of the most frequently used email service for both individuals and businesses for things ranging from sending and receiving emails, completing a monetary transaction and sharing of important documents. This blog article provides a simple and comprehensive method to learn how to backup Optus mail. You will find both manual methods for creating a backup and a direct automated solution for it here.

Main Reasons to Backup Optus Email

  • Cloud Interruption Safety: You have the utmost assurance in having unlimited access to Optus emails along with their attachments, so you do not confront any unpleasant ISP server outages, network maintenance, or just interruptions in Internet connection.
  • Email Account Login Safeguard: Protects data from being lost due to unexpected scenarios, such as account shut downs, switching of services, or security blocks.
  • Offline Access Anytime: Enjoy reliable access to Optus emails stored on the hard drive, without any necessity of being online.
  • Forever Access to Your Data: Ability to access files will not be restricted to a certain period of time.

How to Backup Optus Email Manually?

  1. Step 1 – Collecting Credentials: Before starting any process, make sure you have all of the necessary credentials with you, including your complete Optus email address and the password, together with any application-specific passwords or two-factor authentication information, as per the settings, which will be needed during your account mapping.
  2. Step 2 – Check Webmail Access: Use a web-browser to open Optus webmail and check to see if your credentials are in place and working as they should be.
  3. Step 3 – Set Up Outlook: Launch Microsoft Outlook and enter the details of your Optus email account information using the right email id and password along with incoming and outgoing IMAP/SMTP server information i.e. Incoming mail server (IMAP): mail.optusnet.com.au (Port: 993 which requires SSL/TLS) and Outgoing mail server (SMTP): mail.optusnet.com.au (Port: 465 which requires SSL/TLS)
  4. Step 4 – Synchronize Mailbox: It is important that Microsoft Outlook is given enough time to download all of its folders and messages from Optus mail servers, depending on how large the mailbox is.
  5. Step 5 – Export to PST: Go to File > Open & Export > Import/Export, select Export to a file and click Next, select Outlook Data File (.pst), pick Optus mail account folder and select a location to save the backup on.

Limitations of Manual Method

  • No Automation: Needs manual effort every time which means that emails user receives in between the backup activity, remain unprotected.
  • Timeouts and Data Corruption: Downloading a large mailbox can result in a timeout or failure in a web browser (that could result out of a network glitch or any other reason) which in turn puts the integrity of the archives at risk.
  • No Granular Filtering: Offers no way to filter the data according to specified date ranges, tags, or folders. This might cause an inconvenience to the user for backing up selective data as per his or her choice.
  • Problems with the Access and Restoration of Files: The exported archives could be presented in the form of .tgz or .pst files and need to be converted into a new email service.

Backup Optus Email Using Professional Tool: MailsWare

MailsWare Email Backup Toolkit is a sophisticated and user-friendly program that allows users to export their emails right onto a local hard drive. The program has advanced features which allow users to save directory structures, messages headers, and attachments intact. The software supports many export options with famous formats like PST, MBOX, PDF, EML and MSG as well as directly migrating to various online services. This flexibility allows users to have everything they need for easy email backup and migration. By merging a simple interface with advanced features like email filters, custom file names, automated scheduling and batch processing, MailsWare makes data management look very easy and straightforward.

How to Backup Optus Email in a Stepwise Manner?

  1. Download, install and launch the MailsWare software utility on your PC.
  2. In the email source list, please select IMAP Server option. On the right-side, input your Optus email login credentials along with the IMAP Host & Port details. Further, ensure that any additional security parameters such as 2FA codes are kept handy so as to authorize the login.
  3. Click Login. It will successfully fetch your email data that you can preview and select items to backup as per your choice.
    Preview convertible data after login along with other options
  4. Then click on the drop-down button of Select Saving Options and select the desired target saving option to backup the emails in that selected file format on the hard drive of your PC.
    Choose target saving option from the drop down list
  5. Click the Backup button. It will allow the software to start the backup process of the Optus email account(s) on your PC locally in the selected saving option or format.
    Start the backup Optus email process on your PC
  6. Once the process gets successfully completed, a notification dialog message will be shown to the user confirming the same.

Fabulous Features of the Tool

  • The software programming is done in a way that it does not hamper the integrity of emails during the process.
  • Preserves email metadata, body, formatting and other vital/essential attributes of the email contents.
  • The tool works fast and eliminates all the complications faced by users during backup.
  • Allows you to backup selective email data using filter options or criteria such as, Sender, To, From, etc.
  • Enables user to schedule the backup process by setting the timestamps.
  • Provides multiple target file-formats and destination cloud-based platforms where the data could be backed-up or migrated.
  • Besides hard drive, also enables backup to other useful storage media such as, USB, Flash Drive, NAS Storage, etc.
  • Allows bulk export of your Optus emails using the advanced & inbuilt Batch Mode feature.
  • Offers the most powerful and dynamic Incremental Backup feature.
  • Has customized file-naming capability that enables user to save the backed-up files in a specific naming format.
  • Seamlessly compatible with both Windows & Mac powered PCs.

Conclusion

Securing your Optus email is a must. It prevents possible data loss in times of changing old ISP, optimizes your storage, and increases the overall safety of your account. Taking backup of your Optus email account(s) especially when that data is critical in nature is of extremely high significance. Manual method is okay for smaller backups. Using trustworthy software such as MailsWare makes the work much easier for you. The program helps backup your Optus emails and their attachments into a variety of file formats. It is a powerful utility with lots of strong features. Moreover, it gives you the opportunity to access your data in a very easy way.

Frequently Asked Queries

Q: Why should I back up my emails on OptusNet?

Backing up OptusNet account offers protection to your crucial information in events like domain crashes, issues in operation, etc.

Q: Is it possible to retrieve emails from my Optus account without third-party apps?

Manually backing up your Optus emails is possible if you set it up in a desktop email service like MS Outlook, Apple Mail, Thunderbird, or others.

Q: Which formats can be used in the software systems for backing up OptusNet emails?

Advanced backup tools such as MailsWare make it possible to save emails into formats like PST, PDF, MBOX, EML, MSG, or HTML.

Q: Will the IMAP configuration allow for the backing up of contacts and calendars?

In most cases, IMAP makes it easy to download the mail folder content (Inbox, Sent, or Archived). However, this solution may not be enough for getting access to contacts or calendars so specialized software like MailsWare is required for that.

 

Also See: How to export mailbox in PST file format?

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