Have been using Thunderbird for a long time with a gmail and an Outlook account. (Outlook recently created problems in Tbird and in both mobile apps that I use and I want to dump it!)

I created a Mailfence account today - the free version. Tried to add the Mailfence account to Tbird. There are posts in this forum saying Mailfence doesn't allow imap / smtp access if you only have the free account, and there are posts saying it's allowed during a 2-week trial. Does anyone know for sure? On the Mailfence site, there seems to be no way to find the necessary settings, and every time I try to set it up (whether automatically or manually) the Mailfence account refuses to connect. So I suspect those who say you have to pay are correct.