Are there any true alternatives to Thunderbird? I prefer to use an email client (other than Outlook) and have been using Thunderbird for some time now.
I am going to take a look at Mailbird - but it is not free, though the cost seems really small. I can see that, because maintaining any software costs and Thunderbird had the advantage of being part of the non-profit Mozilla Foundation, where donations exceeding costs do not get taxed as profits.
See post 49