Managing your Junk Folder

Zimbra utilizes a powerful spam filter to determine whether messages from specific addresses or domains should be added to your junk folder. Most filtering of spam e-mail is handled by the spam filter before those mail messages reach your Inbox.

E-mail that might be spam are filtered into your Junk folder. Therefore, sometimes a legitimate e-mail message can be put in the Junk folder when it is not spam. You should check your Junk folder periodically to ensure that you are not missing any messages. You can review these messages and either move them out of the Junk folder or delete them. If you do not move or delete the messages, they are purged after a number of days as specified by your administrator. You can empty the Junk folder by right-clicking the folder and choosing Empty Junk. In addition, the contents of the folder are automatically purged after an administration-configured number of days.

Report Spam E-mail

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Reporting e-mail as spam helps the e-mail administrators to fine-tune spam filtering. If you find a message in your Inbox that is spam, you can highlight it and click the Spam icon on the toolbar. The mail is moved to your Junk folder. Alternatively, you can right-click the message and select Mark as Spam.

Mark E-mail Messages as "Not Spam"

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Sometimes legitimate messages getting flagged as spam and automatically be placed in your Junk mail folder. If this happens, simply use the features of myMail/Zimbra to mark the message as Not Spam. (Note that the Not Spam button only displays when viewing the Junk mail folder.) This will help us fine-tune the settings in the email system. If you notice this becoming more than an occasional issue, please let us know via a call or ticket to the Help Desk.

Forward E-mail Headers

In addition to marking spam e-mails with the Spam button, headers from spam e-mails can be forwarded to See Forwarding Email Headers

Setting Spam Mail Options to Block or to Allow Specific Addresses

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In addition to the automatic Zimbra spam filtering rules (above), you can setup your mail preferences to identify specific addresses to block or not block in your Inbox. You create a list of addresses that should not be added to your Inbox and addresses that always should be added to your Inbox, but could be detected as spam. The spam filter uses this list to make sure you get the e-mail you expect.

If you notice that certain e-mail addresses are always being incorrectly added to your Inbox or Junk folder, you can identify those addresses to block or not block.

  1. Go to the Preferences > Mail page.
  2. Scroll to the Spam Mail Options section.
  3. In the Block messages from text box, enter e-mail addresses that should always be treated as junk. You can list up to 100 addresses.
  4. In the Allow messages from text box, enter e-mail addresses you trust that for some reason end up in your Junk folder, such as newsletters you subscribe to. Messages from these e-mail addresses are never blocked. You can list up to 100 addresses.
  5. Click Save

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