In Outlook
- Follow Microsoft's instructions to set the level of protection in the Junk Email Filter to activate built-in filtering available in Nexus365. The Low setting is sufficient for most people, but if junk email regularly ends up in your INBOX then it may be worth trying the High setting for a while.
- (Optional) The Junk Email Filter includes an option to "Permanently delete suspected junk email instead of moving it to the Junk Email folder". This can be used in extreme cases where you do not want to see the mail at all, but do note that if any messages are incorrectly detected as junk then you will have no means to be aware of or retrieve them.
In other mail clients
Junk Email filtering activated via Outlook for Web as described above will apply to all incoming mail even if you use a different mail program to read messages.
Your mail client may support additional junk / spam filtering: please follow the documentation for your mail client to activate this.
Junk Email filtering might not be 100% effective
Please be aware that accurate detection of junk email is both subjective (one person's junk can be another person's subscriber update) and rapidly changing (senders change their messages to avoid being detected). Junk Email detection is most effective when a combination of generic filtering (the Junk Email settings here) is combined with individual user and mailbox settings (see email methods 1 to 3 above).
Many junk email senders run a campaign using similar subject lines, content or sender addresses for a while, and then move to a new campaign with different details to avoid detection. Using the Email (2) method is often a quick way to block a whole campaign from your mailbox.