Depending on the E-Mail client's settings, E-Mails that you deleted from within an E-Mail client like Apple Mail, MS Outlook or Mozilla Thunderbird, might be deleted only after having signed out from the client. In the meantime, those E-Mails will be shown as crossed out in the groupware. To delete those E-Mails clean up the E-Mail folder.
Note: Depending on the configuration, this function is not available as such E-Mails are not displayed.
How to clean up an E-Mail folder:
In the folder view, select the folder that you want to clean up.
Click theicon next to the folder name. Click on .
Parent topic: Managing E-Mails