Update AndroidManifest.xml
Update AndroidManifest.xml

android:usesCleartextTraffic="true" as it is required to show complete mail view  , otherwise some html images will show broken .

SDK targeting 28+
cketti/k-9,k9mail/k-9,cketti/k-9,k9mail/k-9,k9mail/k-9,cketti/k-9,cketti/k-9