Regards

finally it works , but i have one issue. the alarm is generated only one time. For example:

if the first polled value is exceeding the threshold ---> generate alarm then email

after that whatever next polled value it does not generate another alarm

can you please advise ?

Regards

configuration seems correct. Please filter server log by "SMTP:" messages and post them here. On debug level 8 server should log entire SMTP conversation.

Best regards,
Victor

I attached four images :

1- Specific DC configuration
2- Event that I create for physical Mem
3- event policy for that event
4- Action that will be triggered.
5- Finally Server SMTP Configuration.

kindly have a look at them and give me your feedback

Regards 

this is not an error, just message dump with system event configuration being transmitted to client. If you have SMTP issues, you should look for lines with word SMTP.

Best regards,
Victor

I got below error in the log :

------------------------
[16-Aug-2016 13:47:09.532] [DEBUG] [CLSN-0] Message dump:
  ** 001B0000000001E80000001800000006
  ** 00000018000000000000001600000000
  ** 00000014010000000000002000530059
  ** 0053005F0053004D00540050005F0046
  ** 00410049004C00550052004500000000
  ** 00000019000000000000000100000000
  ** 0000000D000000000000000100000000
  ** 0000001A01000000000000420055006E
  ** 00610062006C006500200074006F0020
  ** 00730065006E006400200065002D006D
  ** 00610069006C00200074006F0020003C
  ** 00250033003E003A0020002500320000
  ** 0000001B010000000000011A00470065
  ** 006E0065007200610074006500640020
  ** 007700680065006E0020007300650072
  ** 00760065007200200069007300200075
  ** 006E00610062006C006500200074006F
  ** 002000730065006E006400200065002D
  ** 006D00610069006C002E000D000A0050
  ** 006100720061006D0065007400650072
  ** 0073003A000D000A0020002000200031
  ** 00290020004500720072006F00720020
  ** 0063006F00640065000D000A00200020
  ** 0020003200290020004500720072006F
  ** 007200200074006500780074000D000A
  ** 00200020002000330029002000520065
  ** 00630069007000690065006E00740020
  ** 0061006400640072006500730073000D
  ** 000A002000200020003400290020004D
  ** 00610069006C0020007300750062006A
  ** 0065006300740000
  ** code=0x001B (CMD_EVENT_DB_RECORD) flags=0x0000 id=24 size=488 numFields=6
  ** [    24] INT32    22
  ** [    20] STRING  "SYS_SMTP_FAILURE"
  ** [    25] INT32    1
  ** [    13] INT32    1
  ** [    26] STRING  "Unable to send e-mail to <%3>: %2"
  ** [    27] STRING  "Generated when server is unable to send e-mail.
Parameters:
  1) Error code
  2) Error text
  3) Recipient address
  4) Mail subject"
---------------------

your support is highly appreciated

Regards

telnet 127.0.0.1 25
Trying 127.0.0.1...
Connected to 127.0.0.1.
Escape character is '^]'.
220 Communication-madar2.localdomain ESMTP Postfix
ehlo netxms
250-Communication-madar2.localdomain
250-PIPELINING
250-SIZE 10240000
250-VRFY
250-ETRN
250-ENHANCEDSTATUSCODES
250-8BITMIME
250 DSN
mail from: x@example.com
250 2.1.0 Ok
rcpt to: amrisy@example.com
250 2.1.5 Ok
data
354 End data with <CR><LF>.<CR><LF>
From: x@example.com
To: amrisy@example.com
Subject: hello

hi all

.
250 2.0.0 Ok: queued as 72319C06BAEC
quit
221 2.0.0 Bye
-----------------------------------------

Connect using telnet or netcat:

telnet 127.0.0.1 25
nc 127.0.0.1 25

Sample session (my input in bold, change email address accordingly):

alk@mail:~$ nc 127.0.0.1 25
220 mail.netxms.org ESMTP Postfix
ehlo netxms
250-mail.netxms.org
250-PIPELINING
250-SIZE 134217728
250-ETRN
250-STARTTLS
250-ENHANCEDSTATUSCODES
250-8BITMIME
250 DSN
mail from: noreply@example.org
250 2.1.0 Ok
rcpt to: alk@example.org
250 2.1.5 Ok
data
354 End data with <CR><LF>.<CR><LF>
From: noreply@example.org
To: alk@example.org
Subject: test mail

test body
.
250 2.0.0 Ok: queued as 7F9202019B
quit
221 2.0.0 Bye