Email Notification fails with error:undefined

[teffi71]

From one day to another, email notification no longer worked.

I am running petio in a Docker on Unraid.

The log says:

2023-09-21 18:53:58 info: MAILER: Creating email config
2023-09-21 18:53:58 info: MAILER: Config created
2023-09-21 18:54:28 info: MAILER: Sending email from: sxy@xyz.eu to syx@zyxl.com with the subject Petio Test Email
2023-09-21 18:54:58 error: undefined
2023-09-21 18:54:58 warn: MAILER: Message failed to send

Any guidance on how to trouble shoot would be appreciated :)

[teffi71]

It was an user error :)