How can I add someone to the white list?
Go to https://horde.metu.edu.tr/login.php address and login with your usercode and password. If the language is not appropriate for you, choose the language from the “Dil” drop-down menu. Then, click on the “Giriş” button.
To use the feature first the "Mail" icon and then "Filters" icon are clicked.
From the menu on the left, click on the "White List" button.
You will see a textbox. Click inside the textbox. Now, write down e-mail addresses that you want to put in white list. (Be careful: You should write all the e-mail address on separate lines.)
When you finish writing e-mail addresses, click on the "Save" button on the same page
Changes are saved. E-mail addresses are on the whitelist.