I am seeing quite a few of these in my logs:

03:02 00:00 SMTP-(0EB00924) 250-b456.cnnic.net.cn. Hello MY-IP-BACKWARDS.reverse.theplanet.com [MY-IP] (may be forged), pleased to meet you
03:02 00:00 SMTP-(0EB00924) 250-ENHANCEDSTATUSCODES
03:02 00:00 SMTP-(0EB00924) 250-PIPELINING
03:02 00:00 SMTP-(0EB00924) 250-EXPN
03:02 00:00 SMTP-(0EB00924) 250-VERB
03:02 00:00 SMTP-(0EB00924) 250-8BITMIME
03:02 00:00 SMTP-(0EB00924) 250-SIZE
03:02 00:00 SMTP-(0EB00924) 250-DSN
03:02 00:00 SMTP-(0EB00924) 250-ETRN
03:02 00:00 SMTP-(0EB00924) 250-DELIVERBY
03:02 00:00 SMTP-(0EB00924) 250 HELP



I had to relay for ip with my ip in there, i just changed it back to no relay.


So looking at this, i am thinking my provider is not blocking inbound traffic with my ip address, and this is being used to spoof my own ip and send out mail as if it was coming from me?

Is this correct?

I would have thought they would not have allowed traffic to do this?

Thanks

Chet


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