The huge white space on the right appears more often than not in Gmail for Google Apps. This does not leave much horizontal width for email contents. Is there a way to prevent this?
Gmail: Why Email Content Yields to White Space on Right?
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Best Answer
That space is reserved for ads and for the people widget (if enabled). The only way to “prevent it” or to remove it is by using some Greasemonkey/Userscript or browser extension. (See this one if you are using Chrome.)