Hi, I really need help! Have had issues both sending and recieving mails all week. It just say´s "SMTP-error (550): Kan inte lägga till mottagaradress "emailadress" (5.1.8 <emailadress>: Sender address rejected: Domain not found)." when I try to send. My internet connection is great, I have tried different email adresses, this just shows up. And when people email me, nothing happens. If I have understood it correctly, SMTP errors is not something directly related to roundcube webmail, but I wondered if anyone have any idea how to fix this? I have changed from Ubunto to Windows so all the advices I can find online on this issue is to use the terminal, which I now obv can´t. Thank you so much in advance, Johanna
