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<?php echo preg_replace('/(?<=^.)[^@]*([^@]{2}@[^.]{2})[^.]*(.\.).*(?=.$)/i','*$1*$2*','example@example.com'); // e****le@ex****e.**m
Output for git.master, git.master_jit, rfc.property-hooks
e*le@ex*e.*m

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