An Adebayo Akinfenwa headed goal from close range was enough to earn Northampton Town all three points, in a game were the points could have gone either way.
In a scrappy game in which few clear cut chances were created by either side. The defeat leaves the Daggers still looking for their first league win of the season.
John Still kept to the same starting eleven who earned a 1-1 draw with Accrington Stanley at the weekend. With Brian Woodall, Dwight Gayle and Medy Elito in a front free.
It turned out to be Woodall and Elito had the best chances for the Daggers with shots that both narrowly missed the target in a competitive first half, with the Daggers' visitors failing to register a shot on target in the first half.
In the second half it was Northampton who came out the stronger and with only five minutes played in the second half the powerful Akinfenwa rose highest to head home a corner at the back post. It was the visitors first shot on target and proved to be their last. In a competitive second half where chances were limited, Medy Elito saw his well struck shot beaten away and Micky Spillane's effort were saved well by Nothampton's on loan Wigan goalkeeper Lee Nicholls.
The home side continued to rally with John Still bringing on Josh Scott ,Sam Williams and Billy Bingham in place off Gayle, Woodall and Elito. However the changes failed to change the game in the favour of the home side and the Daggers fell to defeat.
Next up for the Daggers is recently relegated Rochdale away where John Still will be looking to turn competitive performances into wins.
Daggers team: Lewington, Wilkinson, Femi, Doe, Spillane, Elito(Bingham, 72), Howell, Hoyte, Ogogo, Gayle(Scott, 68), Woodall(Williams, 63).
Subs not used : Seabright, Dom Green, Reed, Danny Green
Man of the Match: Luke Wilkinson
Attendance: 1429 (272 Away)