A small spelling error has resulted in thousands of emails intended for the U.S. military being sent instead to Mali, an issue that Pentagon officials said they've taken steps to mitigate. The suffix used for U.S. military emails is .mil, but leaving the "i" out by mistake would result in the email being redirected to .ml -- the domain used by government of the West African nation Mali. "Since 2015, the Department of Defense has been aware that typographical errors could result in the misdirection of unclassified emails intended for a '.mil' recipient to the '.ml' domain," Lt. Commander Tim Gorman, a U.S. Department of Defense spokesperson, told ABC News.