For me, copying to the cloud is a deal-breaker (I switched to proton mail for a reason!). Fortunately, there's Thunderbird. I don't trust Microsoft not to do do

For me, copying to the cloud is a deal-breaker (I switched to proton mail for a reason!). Fortunately, there's Thunderbird. I don't trust Microsoft not to do dodgy Google-like things with my data at this point.