Zoho works well for me with my own domain (though I am on the old free plan that allows IMAP, while today the free plan only supports webmail or their own app). I also know someone who uses Tuta without problems sending to Google and Microsoft.
Zoho works well for me with my own domain (though I am on the old free plan that allows IMAP, while today the free plan only supports webmail or their own app). I also know someone who uses Tuta without problems sending to Google and Microsoft.