Hello. 

Our domain (surgut.ru) recived over 50000 mail in the day. 
45000 of the letters - is spam.

Example of spam letter:
IP_From: 213.13.225.239
Mail_From: [EMAIL PROTECTED]
Mail_To: [EMAIL PROTECTED]

jmi.com have MX and it is real DNS name, 
ip address of jmi.com is 66.94.32.19 and 
MX:   mail.jmi.com    internet address = 66.94.32.4

213.13.225.239 hase not record in DNS

How can I configure courier does not accept letters without MX record for
gateway IP (ip from)?





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