Occasional "SBRS unable to retrieve" log messages.

Unanswered Question
Oct 15th, 2008

I am noticing, a couple of times per month, the following informational
log messages, in short bursts :

Oct 14 13:22:18 hostname mt1: Info: ICID NNNNNNNNNN ACCEPT SG UNKNOWNLIST match sbrs[none] SBRS unable to retrieve

This is a two member C300 cluster with AsyncOS 6.3.5-003
Our Internet link is Gigabit speed.

Transient errors to "phone home" ???


I have this problem too.
0 votes
  • 1
  • 2
  • 3
  • 4
  • 5
Overall Rating: 0 (0 ratings)
kyerramr Thu, 10/16/2008 - 06:20

Hi Eric,

The information you are looking for is available in the following article.


however, if this information appears frequently in the mail logs, please contact IronPort Support for further analysis. Also, check to see the actual reputation score of the IP addresses in Senderbase.org to find if the connecting MTA's have a reputation.



This Discussion