Zimbra Webmail Spam / Junk Mail Frequently Asked Questions

Most filtering of unsolicited automated email (also known as spam or junk mail) is handled by a spam filter before those email messages reach their Inbox.

Email that might possibly be junk mail, but is not certain to be junk, is placed in their Junk folder. 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 30 days.

If you have an incorrect message marked as spam, check for the following:

  • Messages you have bcc'd yourself in may go to spam.
  • Spammy subjects such as blank subjects or short 1-2 word subject lines
  • Emails with no content
  • Emails with only a url as content

Some unwanted messages may not be fully categorized as spam and are not placed in the Spam folder (ie. weekly newsletters and advertisements from legitimate companies). The best way to handle unwanted mail from legitimate senders is to unsubscribe from the mailing list.
 

Mark Email as Spam

  1. Select the message to mark as junk.

  2. On the toolbar, select the Shield with the X button.

You can also right-click the message and select Mark as Spam.

The email is moved to the Spam folder.

 

Mark Email as Not Spam

Sometimes messages that are not junk are placed in the Spam folder. You can move the messages to the appropriate folder in a number of ways: Drag the message to another folder, Select message and click Shield with the X button, or Right-clicking the message and selecting Mark as Not Spam.

  1. Drag the message to another folder.

  2. Select the message and click Shield with the X button on the tool bar

  3. Right-click the message and select Mark as not Spam button. The selected message moves to their Inbox.

 

A confirmation message will appear at the top relaying the number of messages marked as not spam.


 

Empty the Spam Folder

The contents of the Spam folder are automatically purged after an administration-configured number of days. But you can empty the Junk folder any time.

  1. Right-click the Spam folder and select Empty Spam.

  2. Click OK when prompted.

Spam Mail Options

How To Manage Block and Allow Lists
If you notice that certain email addresses are always being incorrectly added to their Inbox or Junk folder, you can identify those addresses to block or not block.

Click on the Gear icon at the upper right of the page and click Settings.


Click Blocked and Allowed Senders from the left menu.


Here you can add an email address or a whole email domain (ie. ebay.com) so you can either Allow or Block all messages from specific senders. 

  • To Block a sender, enter in the email address above the Blocked Senders list and click Block.
  • To Allow a sender, enter in the email address above the Blocked Senders list and click Allow.




Click Save once your changes are complete.