If you find that emails from someone you know, or a newsletter, for example, are sometimes or always categorized incorrectly as spam, you can add the sender address of these emails to your whitelist. Email addresses on a whitelist will automatically be identified as «good», i.e. the emails from this sender will always land in your mailbox.
You can add certain email addresses or all email addresses from a certain domain to the whitelist. Enter individual emails to the list in the format «sender@domain.ending». To include an entire domain to the list, use the wildcard «*@domain.ending».
You can manage the whitelist as follows: