If so, I guess it's time to setup my own mailserver. I've been meaning to do it for a long while now anyway, as I'm not comfortable with the thought that Google is data-harvesting all my and my family's emails. But with mailservers being notoriously difficult to setup and configure securely, I keep putting it off.

Time to get reading a few tutorials, methinks. Can anyone recommend a good lightweight email server [I have less than a dozen email accounts on my domain] and a useful tutorial on setting it all up securely?

Incidentally, I run email accounts on some of my other domains, using Yandex Mail for Domains [0] which [at least last time I checked] was still free. Im slightly dubious about using it for my main domain though as I've found delivery to be less than 100% reliable. In the past, I've had one or two emails disappear completely. Yandex's own mail logs showed them being received, but they never showed up in my inbox or any of my other folders.

I suspect Yandex have a slightly over-eager server level spam filter, which ate them before they ever reached my inbox. But Yandex's support are generally useless and were unable to tell me what had become of the emails in question, even when I presented them with their own mail log.

[0] https://yandex.com/support/connect/add-domain.html