Omron CS1W-ETN21 operation manual Mail Not being Received, A R T

Troubleshooting Procedures Section 8-4

Mail Not being Received

S T A R T

Is the HOST indicator	Y
lit?
N		Is the SMTP,
	Y		Y
Is the HOST indicator
		POP3, or
flashing?		DNS error status
		bit ON?
N		N

Is the ERH indicator	Y
flashing?

N

The mail reception function (and response mail transmission) cannot be used because no IP address or host name is set for the POP3/SMTP server.

Using the CX-Programmer, make the SMTP and POP settings in the System Setup. If the host name is used for the server settings, then the DNS tab settings must be made too.

There is a mistake in the Unit Setup. Correct the mistake.

•The SMTP server address is wrong (set to 255.255.255.255 or 127.*.*.*).

•The SMTP server host name is wrong.

•The local mail address is wrong.

Referring to the error log, correct the communications path.

•The SMTP server address is wrong.

•The IP router table is wrong.

•There is a communications error or a mistake in the communications path settings.

•The POP3 server and account information (user name, password, mail address) do not match.

Are there responses	Y
to remote mail commands?
N

Is the user mail	Y
transmission status
"0"?
N
E N D

Correct the communications path.

•Are the mailer settings correct?

•Are the settings correct for the POP3 and SMTP servers in the communications path?

•Are the Unit Setup and the mail addresses set for the servers correct?

•Are the destination mail addresses for remote mail commands correct?

•Has the network administrator set protection for mail addresses as a firewall?

From the response code (response status), refer to the section on receiving mail in the Operation Manual, Construction of Applications and remove the cause of the error.

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