Recommended email client

Since Libre doesn’t have an email client, does anybody have recommendations for a suitable replacement for Outlook? I need it to be able to handle 3 email addresses.

And why don’t you stay with Outlook? Please understand that it is hardly possible to give any advice or recommendation without any background information. I have openSUSE Leap 15 GNU/Linux OS and use thunderbird. But you may also use Evolution, kmail or others, which I may not be aware of. In fact the question is not related to LibreOffice

Thunderbird. Period.