I have problem of spam mails which my Exchange 2013 Receive connector accepting which
was coming from different source from external domain, and in that From address and recipient address is also different than my domain. I tried to block these domainswith help of Antispam feature by
IP, but IP also changing frequently it is not fixed and these spam mails are coming around five to seven thousands in an hour. Because of this spams my mail flow working slowly and queue folder taking space in my C Drive.
Please give me some solution or configuration, so I can block these spams.
Please give me some solution or configuration, so I can block these spams.