For more rejection-based documents, I suggest a look at Literary Rejections on Display.

Source
Transcript
ZYZZYVA
Manuscript logged in: MAR-2 2007
Gentle writer:
Please forgive me for returning your work and for not offering comments or suggestions. I would like to say something to make up for my ungraciousness, but I don't think a few quick remarks would really help. The truth is I have so little space, I must return almost everything -99%- of what's sent to me, including a lot that interests me and even some pieces I admire. (Also, I make mistakes; my taste is erratic, my judgment flawed.)
The important thing is this: Do not be discouraged by this or any other momentary setback. The road is long; the struggle must go on.
Then, too, the ways of the Muse are strange. When she does visit again, I hope you will give her my best regards.
Onward!
Keep the faith.
Yours,
(Signed)
Howard Junker
Editor