Nextcloud, Qbittorrent, Truenas and loads of other svcs take optional email credentials for sending alerts and other features (eg. password recovery for nextcloud).
What email providers do people usually use to make this process simple to set up? For example, Microsoft doesn’t allow basic auth anymore so it’s supposedly not possible to use via most of these setups, and some other services seem like they have a low inbox size (does this matter?)
Under things me and my users notice aren’t working right away, at the top of the list is email. So I notice when those alerts aren’t able to get through, because if email is down I have my phone ringing off the hook because my dad can’t get to his online auctions to see if he won that toaster for $5. So email is like, the best option.