I use a Thunderbird E-Mail Client on Android and I have 4 different E-Mail accounts. Everything works fine but with one of the e-mail accounts I have problems because when I send an Email with the Android App the sent E-Mail will not be stored in the sent folder. I know where I can check this in the app but it doesn't work. Maybe you can help me. My email provider is extromail.de Thanks Markus Bandomir