Northampton captain Ian Morris' second-half goal rescued a point for his struggling side against Dagenham.
Debutant Luke Norris put the Cobblers ahead from close range after Stuart Dallas returned a corner into the box.
Two Dagenham goals in the space of three minutes, the first a superb curling effort from Zavon Hines followed by Rhys Murphy's header, then turned the game on its head.
But Morris had the final say with a low drive after being released by Dallas.
VIEW FROM THE DRESSING ROOM
Northampton manager Aidy Boothroyd told BBC Radio Northampton:
"In the first 40 minutes, I thought we did really well. We played some good stuff and did exactly what I wanted.
"The goal from Hines is very, very good. We should have dealt with it earlier, though. With the second goal, we were feeling sorry for ourselves.
"We've enough senior players on the pitch to make sure that it stays at 1-0. But if they got everything right, they wouldn't be here.
"To go 2-1 down, to show the character and spirit to come back, we were brave. We scored a good goal. On another day, we could have had more goals."
Northampton Town 01 Duke 02 Amankwaah 06 Collins Booked 17 Deegan (Demontagnac - 72' Booked ) 27 Kouo-Doumbe 18 Reid Booked 04 Carter 08 Morris 33 Norris (Toney - 86' ) 11 Hackett 29 Dallas Booked Substitutes 07 Demontagnac 12 Tozer 19 Emerton 21 McNamara 24 Toney 26 Harriott Dagenham & Redbridge 01 Lewington 04 Doe 03 Ilesanmi 17 Howell Booked 02 Wilkinson 05 Saah 08 Ogogo 07 Elito (Obafemi - 89' ) 14 Dickson (Bingham - 75' ) 09 Murphy 41 Hines Substitutes 06 Bingham 10 Scott 11 Obafemi 15 Saunders 16 Dennis 26 Connors 30 Seabright
Ref: Tony Harrington