To follow-up on our email exchange earlier today:
Aqua displays exactly what's in the message.
Gmail (and I guess BlueMail in your screenshots) do some massaging of message content to make it less wide -- I'd say the results are sometimes a bit questionable. As some parts of a message become larger and more readable, others become less so.
Mobile view support was removed from the system HTML display component in Android 4.4 by Google engineers.
You can hear the loud weeping of other Android application developers at the link below:
https://code.google.com/p/android/issues/detail?id=62293Prepare to be impressed by the calm with which these requests were rejected by Android platform developers.