Mitsubishi Electric MELSEC-L Series - An E-Mail Cannot be Sent

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CHAPTER 16 TROUBLESHOOTING
16
16.6 Troubleshooting by Symptom 16.6.12 An e-mail cannot be sent.
16.6.12 An e-mail cannot be sent.
The following table lists how to troubleshoot the problem when an E71 cannot send an e-mail.
(1) When sending an e-mail with a program
If the action above does not solve the problem, check the following.
• Is the e-mail parameter setting of the E71 correct?
• Is the mail server system down?
• Is there any error in the communication path?
(2) When sending an e-mail with the programmable controller CPU monitoring
function
If the action above does not solve the problem, check the following.
• Is the e-mail parameter setting of the E71 correct?
• Is the mail server system down?
• Is there any error in the communication path?
Check item Action
Was the MSEND instruction executed? Correct the execution conditions of the MSEND instruction.
Was the MSEND instruction completed normally?
Check the error code in the MSEND instruction completion status area and
the e-mail sending error log to correct the error.
Is the error response received from the mail server using the
MRECV instruction?
Check with the system administrator that the following settings are correct:
• DNS setting
• E-mail setting
Check item Action
Are the monitoring conditions satisfied? Check the notification setting with the programming tool.
Was the first sending performed using the programmable
controller CPU monitoring function?
Check if there is any device outside the range of the device settings among
the condition devices and correct the condition device.
Were the second and subsequent sendings performed using
the programmable controller CPU monitoring function?
Correct the following so that the monitoring condition disable time becomes
longer than the value set in "PLC Inquiry Interval".
• PLC Inquiry Interval
• Condition Device
Correct the following so that the sending time of the SMTP server and the
E71 becomes shorter than the value set in "PLC Inquiry Interval".
• Reduce the load on the SMTP server.
• When the SMTP server and the E71 are connected via routers or other
devices, connect the E71 to the same main line as the SMTP server.