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Knowledge Base

AVM Content

Knowledge document #523

FRITZ!Smart Energy 250

This support document is available for the following products:

Push service mails are not sent

Although the push service was configured according to our guide, the FRITZ!Box does not send any emails about the status of your smart home devices. One of the following error messages is displayed in the event log of the FRITZ!Box:

'Email delivery failed: SMTP server reports [...]'
'Email delivery failed: TCP error'
'Sending of an email message failed. Reason: authentication error.'
'Sending of an email message failed. Reason: TCP error.'

Note:All instructions on configuration and settings given in this guide refer to the latest FRITZ!OS for the FRITZ!Box.

Simply proceed as described below. After each measure, check whether the problem is solved.

1 Adjusting the email account settings

Many providers protect their email accounts with special security mechanisms that prevent push service mails from being sent:

Adjusting Google account settings

Generate an app password for the FRITZ!Box and configure it as the password for the push service.

Adjusting Apple account settings

If you enabled two-factor authentication for your Apple ID, set an app-specific password for the FRITZ!Box and configure this as the password for the push service.

Adjusting Yahoo account settings

Generate a new app password for the FRITZ!Box and configure this as the password for the push service.

2 Enabling email sending in your email account

Some providers have email sending via a different program switched off by default:

Enable the use of external email clients in your email account.
Note:With some providers, you can enable this in the settings for POP3/IMAP access.

3 Contact your provider

If the test email was not sent, your account information is incorrect or there is a problem with your provider. With some email providers, an additional password must be set up in the customer portal or the provider protects the email account with additional security mechanisms, for example:

Contact your email provider.