TerraMaster Forum

Set to use local SMTP, i don't always get notifications, especial not when the backup fails.
The mail for "Backup starts" is the same as the one for "backup is complete"

There may be an Internet connection issue or you may have a poor connection to the SMTP server.
You can try other internet connection features like TNAS.Online and APP Center to confirm the connection.
You can also try customizing the SMTP server to Gmail SMTP, Office 365 SMTP, etc.

Or it could just be that the 'local email' option doesn't work and has not worked for a while aas reported by several users. Sometimes the 'custom' option using port 25 also won't work. Only way I have got it to work (Tos5 and Tos6) is to use custom with ssl/tls option with appropriate port for your mail service.

Oh, by the way, if you use Gmail this may block emails from 'devices' unless you set it up correctly according to the instructions on Gmail (somewhere).

So pretty unreliable as everything on the Terramaster
I have fibre connection, pretty stable, all my other notifications from Home Assistant via Telegram are always transferred.
Would be possible awesome to have the possibility to integrate API Notifications.
As SMTP got complicated lately due to all security settings from all providers.