Migrate Outlook 2011 to Thunderbird While Avoiding Data Fragmentation

Migrate Outlook 2011 to Thunderbird without the fear of partial data conversion. Try 'OLM Extractor Pro' to achieve that.

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Migrate Outlook 2011 to Thunderbird

There are couple of issues with migrating Outlook 2011 to Thunderbird. The most prominent among them is the partial data conversion, giving you defective output files that do not contain the original data perfectly. There can be certain fragmentation or loss of your original items.

Any email migration task has this major issue hovering over the heads of users, but Outlook 2011 to Thunderbird migration is most likely to be suffering from this.

This is even more distressing for users because of how efficient clients like Outlook 2011 and Thunderbird are. They both have great friendly interfaces, plenty of features to manage with your emails, contacts, and calendar data, and have a huge support from their developers (Microsoft and Mozilla). Thunderbird is an open source client that is managed by a large community, and dozens of extensions help users extend its functionality even more.

Outlook 2011 to Thunderbird Migration

Considering that, it may come as a surprise to most that data migration from Outlook 2011 to Thunderbird is not as smooth as using these clients. Without any proper assistance, it can become quite painful.

The reason behind why this migration isn’t straightforward is that the data files of Mac Outlook, called OLM, cannot be directly imported into Thunderbird. Thunderbird has extensions that improve its functionality, but there is yet no way to upload files with OLM extension to it.

Today, we are going to suggest you a way that would make it very easy for you to transfer everything from Outlook 2011 to Thunderbird regardless of incompatibility of OLM files in Thunderbird.

If you are not in the mood of experiencing all the complications offered by such tasks, you must try “OLM Extractor Pro.” It’s the finest tool available today to easily move your contents from Outlook 2011 to Thunderbird.

outlook 2011 to thunderbird

How to Migrate Outlook 2011 to Thunderbird

How “OLM Extractor Pro” achieves that? As the name might suggest, it is a tool that extracts OLM files for its contents, and then converts all of it into Thunderbird compatible files. You have to first archive emails and other items into OLM files from Outlook 2011 (Go to ‘File’ –> ‘Export’) and load those OLM files to the tool, choose ‘Thunderbird‘ as output, check other settings that are available (More on this below) and click ‘Convert‘. Wait for the tool to finish its job, and finally, import the output converted data files into Thunderbird.

Also Check: How to convert OLM to Thunderbird

migrate outlook 2011 to thunderbird

This is as simple as it can get. But the tool also offers some additional settings that allow for the flexibility for different users with various unique needs. These are optional, and doesn’t overwhelm or confuse users with simple needs and no experience of email migration.

The interface of the tool is very basic that makes the conversion straightforward.

The optional settings are:

  • Save read and unread emails in separate folders
  • Merge all contacts from a single folder to a single VCF file
  • Merge all calendar entries from a single folder to a single ICS file
  • Filter folders according to types (Mails, contacts, calendar)
  • Ignore all empty folders and exclude them from output Thunderbird files

outlook 2011 to thunderbird migration

You can also use “OLM Extractor Pro” to convert OLM files to other formats such as Apple Mail, Postbox, Entourage, EML, RGE, and MBOX files.

It’s a complete package that offers a seamless way of migration.

Best tool to Migrate Outlook 2011 to Thunderbird

And now we are back to our original concern – partial migration and loss of information. You will be glad to hear that the central framework of “OLM Extractor Pro” is a dedicated set of algorithms that keep your contents and their integrity in check. It is capable of extracting everything without fragmentation. Components like email graphical objects, email attachments, metadata and headers, non-English text, folder hierarchy, nested messages, and other such details are all converted thoroughly without modification.

The output Thunderbird files (or other formats) will be free from any defects and deviation from the original OLM files. The data in both input (OLM) and output (Thunderbird) will be exactly similar. Every single byte of information gets properly converted and rebuilt into Thunderbird format with consistency.

Download to Migrate Outlook 2011 to Thunderbird

Get “OLM Extractor Pro” today. You can download the free trial version today. It’s available for instant download with no sign-up required, and gives you access to all its premium features up to ten items per folder per OLM file.

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Any user who has tried other conversion applications before or has attempted to manually move data would be surprised to see how easy and simple it can be to migrate Outlook 2011 to Thunderbird.

how to migrate outlook 2011 to thunderbird

Built by USL Software, the tool has all the characteristics that the company is known for in email migration industry. It is also backed up by 24×7 customer support that is quick to respond, very friendly, and dedicated to make your experience smooth and flawless.


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Get ‘OLM Extractor Pro today to migrate Outlook 2011 to Thunderbird, Apple Mail, Entourage, Postbox, MBOX and EML file formats.

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