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Old February 8th 07, 05:21 AM posted to alt.binaries.pictures.aviation
William R Thompson
external usenet poster
 
Posts: 150
Default Need help with a rocket motor ID

Henry_H@Q wrote:

I tried emailing you, and got the following:


550 ... User unknown


I don't know what the protocol for this is, anymore.


550 is a new one on me, and I'm quite experienced at
getting error messages. Ask any computer I've touched.

I just tried to e-mail you and I got a "501" error message.

--Bill Thompson