On 06.12.08 00:54, Yavuz Maslak wrote:
> Sometimes, although anyone don't use domain.com's server, he sends many
> mails using himself smtp service as if these mails come from @domian.com.
> 
> the domain.com may be hotmail.com , gmail.com. 
> 
> is there a rule for that so that we can give some score for these mails? 

implement SPF and/or DKIM checks at SMTP level.

use SPF and DKIM plugins.

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