@joseph @heluecht @admins Without knowing anything at all about your setup: Be very careful when using a local server as an outgoing mailserver. Both Microsoft and Google are extremely picky when it comes to receiving mails from servers that are unknown to them, and they will routinely throw your emails into the unwanted mail folder if your server does not satisfy their requirements (DMARC, SPF, MX, whatnot). If you have access to a relay server at Google or similar, using that would definitely be a better way.Yes, I know - but principles are really not worth much if your new users never get their welcome emails...
