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E-mails with invoices are not processed by edoc e-mail processing with the message "temporary failure in name resolution"

Component

edoc e-mail processing

Version

Current 25.5.2.1

Created on

Last modified on

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Review status

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KB article number

1693614224

Summary

If edoc e-mail processing does not collect an invoice or other documents from a mailbox, you will receive the following message:

temporary failure in name resolution

The cause of this behavior may lie in the DNS configuration of the host system. For example, manual changes may have been made with netplan so that the DNS configuration within the containers is not synchronized.

In this KB article you will learn how to analyze and fix the problem.

Important requirements

  • SSH access to the server with edoc platform

  • Write access to the system in edoc system control

Solution

First carry out an error analysis:

Test the DNS resolution on the host system with nslookup. If this test is successful but errors continue to occur in the containers, this is a clear indication of an outdated DNS configuration in the container.

The problem arises because the CoreDNS configuration of the containers is not updated automatically if the DNS settings of the host system have been changed manually (e.g. by netplan).

To resolve the problem, you must perform a synchronization. The synchronization updates the CoreDNS configuration in the containers so that the new DNS settings of the host system are adopted.

Here's how

  1. Open your system in edoc system control.

  2. Create a SyncSystemState task under Configurations > Synchronize state > Synchronize.

  3. Optionally, adjust the scheduling of the task.

  4. Wait until the task has been successfully completed in edoc system control, only then will the DNS configuration of the container be updated.

The e-mails should then be processed correctly again by edoc e-mail processing.