Frustrations with iPad and iPhone

At the moment, computer-saavy Geary is with me and baffled by the fact that my e-mail has disappeared form my inbox not on my computer but on my iPad and iPhone.  The first strange thing was that when I clicked on a link Jerry Nachman sent me for the Washington Times, it said"Oops, we can't seem to locate the page you were looking for."  But when I clicked on the link from my computer, my browser could locate it and read it!  Why this difference?  Then everything disappeared from both my iPad and my iPhone inbox.