Giuliano Gavazzi said:
> fools... his From: header does not contain a domain but just a
> "username" and your mailservers did complete it with their local
> domain name. Pretty bad choice, modifying the content of the From
> header, urgh...

Although your technical assessment of what is happening is likely correct
- I think your sentiment is misplaced.

His mail server appears to be bow.intnet.mu, although that may not be a
valid return address either.  Nonetheless, your mail administrator should
be able to modify the configuration of your mail server to prevent this
from happening.

If that's you, and if you use Postfix, refer to
http://www.postfix.org/uce.html.  By default, it is allowed, but the
default behavior should be modified - it rarely is.

I believe but I'm not sure that qmail also has the same capabilities.

In fact, it should be the list server which rejects messages with
malformed headers - otherwise it becomes possible to spam the list.

Rod.



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