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Hello, I have a problem with a sending event reporting via mail on my 6 devices Teltonika RUT950. The devices stopped sending messages on February 4, 2022. I didn't change any settings and suddenly the routers stopped sending messages. Automatic messaging works on another device Teltonika RUTXR1 connected to the same network, with the same settings. SMTP server is set on smtp.office365.com and port 587, previously this setting worked. Sending a test message also fails. Firmware on devices TLT RUT950: RUT9XX_R_00.06.08.6.

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Hello Lukas,

As a first step, you could try to update your router's firmware version to the latest one and check if the issue no longer exists. To update your firmware version, please refer to the links below:


If the issue persists after the update, let me know, and I will send you a Troubleshooting procedure.

I look forward to reading your comments.