It may help to increase the timeout value in SA as well.   If indeed your 
server is broken it won't regardless of the timeout.  If you are interested in 
hearing about it every time your server slows down leave the timeout value but 
it sounds like you don't care if it is just loaded.   Another option is to 
create two checks.  One with a fairly long timeout value that alerts the first 
time and one with a lower timeout that alerts only after 4 or 5 times.  The 
short timeout one would depend on the long timeout one that way if indeed the 
server is broke you only get on from the first one.    I have done similar 
things to this in the past and it works well.   The first one sends alert that 
the server is down the second send an alert that the server is slow.   
Jason Passow
Mississippi Welders Supply
[EMAIL PROTECTED]
ph: (507) 494-5178
fax: (507) 454-8104

"If you do everything right, nobody will realize you've done anything at all."


Dirk Bulinckx wrote: This is not a false positive. 
It shows that the connection to the port was possible, but that the normal SMTP 
data was not received within the given timeout.   Typicaly this happens when 
the SMTP server is busy and gets a little slower. 
 
 
If you don't want SA to check for that SMTP data, then use the TCP-Port 
connector instead of TCP-SMTP. 
 
 

Dirk Bulinckx.  

--------------------------------------------------------------------------------

From: Servers Alive Discussion List [mailto:[EMAIL PROTECTED] (mailto:[EMAIL 
PROTECTED])] On Behalf Of Chad Stiller
Sent: Friday, April 13, 2007 12:56 AM
To: Servers Alive Discussion List
Subject: [SA-list] Occasional SMTP check problem


Hi again everyone! I have run across another occasional check error, and was 
wondering if anyone out there had a similar setup or any ideas as to why I see 
this. I did poke around the mailing list archive before sending this, but 
didn't find anything that helped. 
 
Currently I have TCP port 25 SMTP checks against our two mail servers. One is a 
SuSe Linux GroupWise box, and it responds perfectly every check. The other is a 
Gentoo Linux box running Sendmail and I occasionally get an alert of 
"Connection possible, but received data not correct".  By occasional I mean one 
check out of every 50 or so, or once every couple of hours. When I get the 
alert I test and email seems to be flowing, and there is no unusual load on the 
server at that time, and the alert usually clears within another cycle or two. 
I turned on second knock and it cut down to where it only throws this out once 
every 5-6 hours, but still occurs regularly none the less. 
 
So, outside of setting the alert to wait until it is down 3 or 4 times in a 
row, anyway to get rid of the false positives? Anyone else run Sendmail or see 
SMTP alerts similar to the above? 
 
Thanks in advance! 
 
Chad D. Stiller, MCSE|MCP
Windows System Administrator
City of Flagstaff
(928)779-7685 ext. 7323 

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