Folder Auto-Clean

If you notice that emails disappear from 1 or all of these folders the most likely cause of this is a feature in smartermail called "Folder Auto-Clean".

You can set this up/adjust this on a domain level or you can manage it on an individual user(must have the box checked on the domain level for "Enable users to override auto-clean settings")

To manage this on the domain level you will need to log in as the mailadmin user. Go to Settings, expand Domain Settings, expand Filtering and click on Folder Auto-Clean.

You can leave it on Use default auto-clean settings or select Override auto-clean settings for this domain. You can click on the Folders tab and see what the current settings are. It should look something like this

Folder Type Settings
Deleted Items Date Over 14 days old
Junk E-Mail Date Over 7 days old
Sent Items Date Over 30 days old

To adjust these you would have to choose the option to Override the settings and then you will need to add the rule with the settings you are wanting.

To set these options on the user level you will have to make sure the option is selected to allow users to override the settings and then you will log into that user and expand filtering under My Settings.