Curious how to change the amount of lines shown on an iPhone, iPad, or iPod touch email preview? If you get a lot of email, it is really handy to see a preview of the first few lines to know if it is important enough to read and deal with. If you're concerned about privacy, you may prefer to display nothing at all. Out of the box, the iPhone and iPad only show the first two lines of text from an email but that can be changed to show much more, or nothing at all.
That is all there is to it, simple but a very handy tweak.
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