None of the chords provided seemed accurate, so I thought I'd upload my 
interpretation of the song. Pretty simple, yet still fun to play.

"Boxing Day" by blink-182

Chords used:

G: 320033
D/F#: 200233
C (during the intro and interludes): x32010
C (during other sections): x32033
Cmaj7: x32000
Em: 022033
D: xx0233


Intro: G    D/F#    Em    C  Cmaj7


Verse:
G         D/F#          C                D              
Let's get started, the faint and broken-hearted
        Em           D           C      D
Hold it up, I've got something I cannot hide
    G         D/F#              C     D 
The worst painkiller, the all in filler
    Em           D       C         D
The apart and departed, look in my eye


Pre-Chorus:

G                D/F#                   Em
Sad, how far you ran, I'll search this land
               C                
Up through the clouds, then back here
G            D/F#            Em
We could reignite, like fireflies
              D
Like an atom bomb at all hours

Chorus:
                    G         C
I'm empty like the day after Christmas
                    Em              C
Swept beneath the wave of your goodbye
                    G         C
You left me on the day after Christmas
                        Em                C
There's nothing left to say, and so good night


Interlude: G    D/F#    Em    C  Cmaj7


Verse:

I will follow, the trail to tomorrow
With my loneliness with sorrow, all through the night
Sons and daughters, mothers and their fathers
Just the bridges and the waters, their clues left behind


Pre-Chorus:

Sad, how far you ran, I'll search this land
Up through the clouds, then back here
We could reignite, like fireflies
Like an atom bomb at all hours


Chorus: 

I'm empty like the day after Christmas
Swept beneath the wave of your goodbye
You left me on the day after Christmas
There's nothing left to say, and so good night

Interlude: G    D/F#    Em    C  Cmaj7

I'm empty like the day after Christmas
Swept beneath the wave of your goodbye
You left me on the day after Christmas
There's nothing left to say, and so good night