Adlai E. Stevenson High School Knowledge Base

Spam Filtering with Gmail

Article ID: 9
Last updated: 06 May, 2016
Revision: 17
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Posted: 14 Apr, 2015
by Steven Diver
Updated: 06 May, 2016
by Steven Diver

Summary: Information about how emails are filtered for spam in Gmail, and what to do if a spam message finds it's way to your inbox, or a legitimate message is marked as spam.

 As of November 2014, AESHS transitioned from Postini to Google Apps/Gmail spam filtering. This transition means that we now rely on Google to process and mark messages as spam, to keep your Gmail inbox free of unwanted messages.


Marking Messages as Spam

As no spam filter is 100% perfect, sometimes spam will find it's way to your inbox. To remove spam from your inbox...

  1. Select the message you would like to report as spam.
  2. Click the spam button in the toolbar above your message list (if you have the message open, you can also report it as spam by using the same button).

More information can be found in Google's Gmail Help Forum:


Legitimate Messages Marked as Spam

Even Google will sometimes mark legitimate emails (ham) as spam. If you find legitimate emails in your spam folder, you can follow this process, detailed by Google, to move those emails to your inbox...

If you find a message wrongly classified as spam, you can unmark the message. Just select the message, and click the Not Spam button that appears at the top and bottom of your current view. Unmarking a message will automatically move it to your inbox.

More information can be found in Google's Gmail Help Forum:


Learn Why Message are Marked as Spam

If you go into your Spam folder, and open one of the messages marked as spam, usually you will see a warning label at the top of the message with a brief explanation about why that particular message was placed in Spam. For more information about those messages, and what they mean, Google's Gmail Help Forum has an explanation:

Spam and suspicious emails

Google's Official Gmail Blog also has a nice explanation of why messages are marked as spam, and the warning labels you may see:

Learn why a message ended up in your spam folder


Gmail Google Spam Ham Filter
Also listed in
folder G Suite -> Gmail

External links

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