The only disappointment was an injury to Jonathan Franks, who was replaced after 54 minutes.
Emnes scored the opening goal, five minutes after the interval, heading in a cross from Joe Bennett.
The victory was sealed by a stunning goal from Nathan Porritt, who chipped the keeper from 25 yards.
BORO: Steele; McMahon (Gaz-Andrezly 59), Robinson, Corker, Taylor; Smallwood, Walker, Bennett; Emnes, Franks (Martin 54), Porritt (Cronesberry 75).Subs not used: Gray, Otte.