07-21-2008 12:42 AM
I configured a basic SMTP probe but it is not working properly : all the rservers are failing and the 'show probe detail' command shows the configured probe receives an invalid status code.
Here is a portion of the configuration :
<<
probe smtp PROBE_SMTP
interval 20
expect status 211 221
rserver host SMTPIN1
ip address 172.20.1.45
probe PROBE_SMTP
inservice
rserver host SMTPIN2
ip address 172.20.1.46
probe PROBE_SMTP
inservice
>>
And here is the telnet on port25 output to 2 rservers (failing one and operational one)
telnet 172.20.1.46 25
Trying 172.20.1.45...
Connected to 172.20.1.45.
Escape character is '^]'.
421 4.3.2 Service not available, closing transmission channel
Connection closed by foreign host.
telnet 172.20.1.46 25
Trying 172.20.1.46...
Connected to 172.20.1.46.
Escape character is '^]'.
220 XXXXXXXXXXXXX Microsoft ESMTP MAIL Service ready at Fri, 18 Jul 2008 09:41:08 +0200
Any idea what is going wrong ?
Thank you in advance.
07-21-2008 01:06 AM
What ACE code are you running?
I face a similar issue where ACE probe was failing because of the way ACE sends its SMTP probe.
ACE sends a "helo smtp_probe" command to the mail server. Some mail servers (rfc 2821 compliant) do not like the underscore (details in rfc 2821).
You can ask your mail server people if ""helo smtp_probe" is acceptable by the Mail Servers.
Syed Iftekhar Ahmed
07-21-2008 11:50 AM
Hello,
This is documented as bugID CSCsm90293 and it's been fixed with release A2(1.1), at least according to the ACE 2(1.1) release notes. This version was released on June 10, 2008.
Regards,
Marc.
07-22-2008 10:52 PM
Hello,
I first tried to check helo probe_smtp :
telnet .... 25
220 xxxxxxx.enterprise Microsoft ESMTP MAIL Service
ready at Tue, 22 Jul 2008 10:44:39 +0200
helo probe_smtp
250 xxxxxxx.enterprise Hello [172.20.1.121]
So the underscore is accepted. Putting return status code to "250 250" did not solve the issue.
I will operate an upgrade and let you know
07-22-2008 11:25 PM
Following is a smtp probe I am using at a working config
probe smtp npmail
interval 5
passdetect interval 5
passdetect count 2
receive 1
open 1
expect status 220 250
Could you post output of
sh probe PROBE_SMTP detail
with both the expect status codes.
Syed
11-24-2011 05:17 AM
Hi Syed,
I configured the probe you suggested and it works perfectly.
Thanks!!!
Nando
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