Getting closer....

code/modules/recycling/disposal.dm

@@ -966,7 +966,7 @@
 				if(sortTag == src.sortType[i])
 					issort = 1
 
-			if(issort || (!sortTag && mailsort)) //if destination matches filtered type...
+			if(issort || ((!sortTag || ismail) && mailsort)) //if destination matches filtered type...
 				return sortdir		// exit through sortdirection
 			else if (backsort && sortTag)
 				return negdir
@@ -996,68 +996,6 @@
 		return P
 
 
-//a three-way junction that sorts objects destined for the mail office mail table (tomail = 1)
-/obj/structure/disposalpipe/wrapsortjunction
-
-	desc = "An underfloor disposal pipe which sorts wrapped and unwrapped objects."
-	icon_state = "pipe-j1s"
-	var/posdir = 0
-	var/negdir = 0
-	var/sortdir = 0
-
-	New()
-		..()
-		posdir = dir
-		if(icon_state == "pipe-j1s")
-			sortdir = turn(posdir, -90)
-			negdir = turn(posdir, 180)
-		else
-			icon_state = "pipe-j2s"
-			sortdir = turn(posdir, 90)
-			negdir = turn(posdir, 180)
-		dpdir = sortdir | posdir | negdir
-
-		update()
-		return
-
-
-	// next direction to move
-	// if coming in from negdir, then next is primary dir or sortdir
-	// if coming in from posdir, then flip around and go back to posdir
-	// if coming in from sortdir, go to posdir
-
-	nextdir(var/fromdir, var/istomail, var/issort)
-		//var/flipdir = turn(fromdir, 180)
-		if(fromdir != sortdir)	// probably came from the negdir
-
-			if(istomail || issort == "Mail Office") //if destination matches filtered type...
-				return sortdir		// exit through sortdirection
-			else
-				return posdir
-		else				// came from sortdir
-							// so go with the flow to positive direction
-			return posdir
-
-	transfer(var/obj/structure/disposalholder/H)
-		var/nextdir = nextdir(H.dir, H.tomail, H.destinationTag)
-		H.dir = nextdir
-		var/turf/T = H.nextloc()
-		var/obj/structure/disposalpipe/P = H.findpipe(T)
-
-		if(P)
-			// find other holder in next loc, if inactive merge it with current
-			var/obj/structure/disposalholder/H2 = locate() in P
-			if(H2 && !H2.active)
-				H.merge(H2)
-
-			H.loc = P
-		else			// if wasn't a pipe, then set loc to turf
-			H.loc = T
-			return null
-
-		return P
-
-
 //a trunk joining to a disposal bin or outlet on the same turf
 /obj/structure/disposalpipe/trunk
 	icon_state = "pipe-t"