In the settings for your archive, you can define whether and after how many days archived messages can expire and which part of a message you want to index.
Log in to the Admin-Panel as administrator. Instructions for logging into the panel can be found in our FAQ article "How can I log in to the Admin-Panel (web interface of the filter)?". Click in "Archiving" > "Settings".
If you want to remove the archived messages after a certain period of time, you can activate the option "Let messages expire". You can then specify the number of days you want to keep the messages in your archive. If you want to archive the messages indefinitely, leave the checkbox unconfirmed.
The maximum number of days that can be entered in this field is 10000.
Below you can configure the indexing settings, i.e. you can tell EuropeanMX which parts of a message should be made searchable.
Please note: Enabling all indexing options can have an impact on performance.
Click on "Update" to apply the settings.