Do you know what existing programs can Postbox import old emails from Tom?

On 11/02/2019 11:11 AM, Tom Krieg wrote:
> Try Postbox. It's Thunderbird on steroids.
>
> Kevin Baker wrote on 10/02/2019 7:58 PM:
>> Liz,
>>
>> I had the Quick Filter turned off and didn't see the "Filter these
>> messages"... now I do.  Thanks!  I finally decided to leave Outlook
>> (for email) and Windows Live Mail (for newsgroups) for ThunderBird and
>> must admit I like it a lot.
>>
>> Thanks again,
>> Kevin