In the message of Peter M. Weiss +1 814 863 1843:
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>      That's why I send them a canned (boilerplate) response.
 
I used to do that and it didn't work well.
 
Now I "bounce" the error message back to the poster, in toto.
Works like a charm!  If the poster can't figure it out, they
write me and I then can send the boilerplate; they don't make the
mistake a second time.
 
Sylvia