> > Having made one entry in the thread about message ID, I could neither edit the entry or add an additional reply
> > without getting "Proxy Error" messages.  I've had this trouble on this forum before, a long time ago.  Perhaps
> > it is connected with the html coding?
> Hi Stefan,
> 
> I now cannot even reply to you in the message id thread; I keep getting:
> 
> Proxy Error
> 
> The proxy server received an invalid response from an upstream server.
> The proxy server could not handle the request POST /elogs/Forum/.
> 
> Reason: Error reading from remote server
> 
> Apache/2.2.3 (Scientific Linux) Server at midas.psi.ch Port 443
> 
> It is, I think, something to do with the html coding (as I normally use plain, I don't come across this as an issue).
> 
> However, in the cause of the experiment, I will submit this entry, then go back and edit it, and if I don't get
> Proxy Error, then that certainly will be something to do with the html coding.
> 
> And this is an extra edited line - if you see this, I got past the proxy error issue this time.  But did you get two
> emails?

That is interesting.  I can make 1 (one) submission to a thread which uses html coding, then I get hit by proxy errors. 
But I can edit, play around or whatever if it is in plain coding.  Yet to see how many emails were generated...