is amended to make the rule definite as to what forms of service qualify as "service

by mail." The rule as amended explicitly allows three additional days only for service by U.S. mail; the use of any other delivery or courier service does not constitute "U.S. mail," and therefore does not qualify for additional time. This rule is now consistent with Minn. R. Civ. P. 4.05, which specifies "first-class mail" as the means for service by mail. Advisory Committee Comment - 2012 Amendment