A. Try adjusting the touch sensitivity settings on your Android device. Go to 'Settings' > 'Display' > 'Touch sensitivity' and adjust the slider to a lower sensitivity. This may help reduce the jumping effect when you touch messages.

B. Clear the app cache for mail.com. Go to 'Settings' > 'Apps' > 'mail.com' > 'Storage' > 'Clear Cache'. This can help resolve any temporary glitches.