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Problems with the mail server?
For this configuration step, navigate to the following menu:
The CS141 provides a variety of options to interact with the environment, external devices, and the network itself.
For this, the necessary services must be configured.
One basic feature is the automatic notification via email and email traps. Due to the fact the CS141 does not provide a complete mail server, a valid email account must be configured.
Mail server
Enter the mail server to be used.
To ensure maximum flexibility, the CS141 allows the use of either an appropriate IP address or the URL of an external mail provider. Administrators can choose between using an external provider or their own mail servers.
Note:
The fact, your CS141 has a connection to the Internet to access external accounts of large mail providers does not mean an external provider will allow a usage for free. Sometimes they start to block service mails without stating reasons or failure message. It just stops working. In this case, it may be necessary to switch to another provider.
SMTP Port
Defines the port used by a mail client to communicate with the mail server. Basically, the ports are standardized. In some cases, administrators need to choose own ports configurations to ensure communication; The necessary access data must be obtained from the local administrator.
Connection Security
Select the encryption type used by the CS141 for sending the emails:
None no encryption required
If available STARTTLS
Force encryption SSL / TLS
Please note that depending on the patch level of your device, you may see either if available/Force encryption or STARTTLS / SSL/TLS.
Sender Email Address
Enter the email address to be shown as the sender.
Email authentication – user and password
Depending on their configuration, email servers either use the email address as the username or require their own user ID and password to receive emails.
For valid access data, please contact your local network supervisor.
Advanced Error Log Options
The CS141 offers the option of automatically sending an email when the most important events occur. The "most important events" are dynamic and depend on the selected UPS, rectifier, or transfer switch model, as well as on the optional devices connected to the CS141/BACS (BACS, SENSORMANAGER, etc.).
The 'most important events' are fixed, cannot be deleted or added, and correspond to those of the default 'Email Trap / RCCMD Trap' configuration:
Note: Configuring system events
For detailed instructions on configuring events, please refer to the Help Center article Event Handling or the corresponding chapter "UPS event handling" located in the CS141 manual.
In this menu, you define not only the event conditions but also:
Format
Customer-specific email format – a solution for recording in customized database systems
Log
This setup defines the event log record condition for automated emails:
Choose between:
Errors only Emails indicating malfunctions are recorded in the event log.
Always Each email is recorded as “sent” in the event log
Never The emails are sent but not recorded in the event log.
Automatically send an Email
Define whether this function should send an email exclusively for the fixed system events or also for planned tasks (scheduler actions), such as the weekly configured battery test.
Receivers
Enter one or more recipients (Mailaddress1@YourMailService.de, Mailaddress2@YourMailService.de, ...). As soon as the respective event occurs, a corresponding email will be sent to these recipients.
Apply / Cancel
Click Apply to confirm the settings and restart the email sending service. Click Cancel to discard all changes.
Test mail settings
This function will be available after successfully saving mail configuration. It allows to send a test mail to any valid mail address to test the connectivity:
With the test fuction, the CS141 will send an Email to a mail receiver of your choice. By doing so, it is possible to test both: Sender and Receiver of a Mail Job.
Mail error message
Connection refused
This error indicates CS141 cannot establish a connection to the mail server it is configured to.
Reasons for this behavior may include:
- wrong encryption type
- wrong or closed ports
- DNS / Gateway settings are wrong
... or the fact, a mail provider does not allow this kind of mail traffic.
Problems with the mail server?
If you use your own mail server, you can usually take a look at the incoming mail log. In general, the reason for rejecting an e-mail is also mentioned there. For online providers, however, the situation looks different:
You usually have no influence on the server and also no insight into the mail log.
Consequently, you may perform all actions correctly; however, the desired outcome remains elusive, and the underlying reasons for this issue are unclear.
Here are a few reasons and examples:
The provider prohibits such service mails. The server simply rejects them automatically.
The mailing account must be confirmed manually. Emails from unknown sources will be rejected until the user of the account validates the corresponding sending device.
The frequency of mails is interpreted as spam. Mail providers react very quickly and deny emails from this device, even if they generally allow it.
Access data is basically correct, but the mail server's virus guard considers the email to be a potential virus carrier. Depending on the server’s settings, the behavior may vary.
Servers use different settings for sending and receiving emails.
Note:
In the case of an Office 365 account, one of these cases may apply. When configuring, please be sure to use the correct port and encryption method!
SMTP: Server: SMTP.office365.com / Port: 587 / Encryption: STARTTLS
IMAP: Server: Outlook.office365.com / Port: 993 / Encryption: SSL / TLS
POP: Server: Outlook.office365.com / Port: 995 / Encryption: SSL / TLS
v.: 2025-07-23 FW 2.16-2.26
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