On Jul 17, 2005, at 13:05, Arno Garrels wrote:

> A server may reject a none local From address, but practically most 
> servers
> don't, since anybody can send any address in the Mail From command.
> However that address is used by the server to build the Return-Path, 
> that's
> why we get so much bounces from SPAM or Viruses using our e-mail 
> address :(

Just as a side note, the reason most servers do not reject this address 
is because it would be an easy way for spammers to validate their 
lists.  This is the same reason why the VRFY command is disabled in 
most servers nowadays.


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