A trick sent  by Gennadiy to precentral allows you to view your emails in landscape mode. You can try it yourself, if you own one (hahaha) following this steps:

Here’s how: when in your mailbox listing view (i.e. the top of the email app), type in RocknRollHax. It helps if you hold down Shift+ the key for the capitalized letters instead of hitting them in sequence. As Gennadiy writes, type as follows:

Hold Shift + R
ockn
Hold Shift + R
oll
Hold Shift + H
ax