Question about "daily run output"

[samy lancher]

Hello,
I have freeBSD 4.5 server. I check "daily run output" sent by server everyday. I  notice some change in the output from past few days. 
In "Checking for rejected mail hosts:" I see following output:
  14 miltnews.com
   1 ohhello.com
   1 OUTGOING25.myaccountemail.com
   1 OUTGOING121.asapemailaccount.com
This output changes everyday but there is always some thing or the other in this section. Till last week this section used be empty; but i starting getting these kind of messages from past few days. Is it some thing i need to worry about?,.
 
thanks in advance,
Naveen.


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