EMAIL: Block an IP address in Gmail

EMAIL GMAIL: Block an IP address in Gmail

To block an IP address in Gmail, you can create a filter to move emails from that IP to the Trash or Spam folder. Alternatively, you can use the “Blocked senders” setting in Gmail to prevent future emails from the blocked IP from reaching your inbox. You can also use Google Workspace Admin console for more advanced blocking options. 

Here’s a breakdown of how to block an IP address in Gmail:
1. Using Filters (Computer):
  • Open Gmail:
    Go to your Gmail inbox in your web browser.
  • Find the email:
    Locate the email you want to use as a reference for the IP address you want to block.
  • “Show Original”:
    Click on the three dots (more options) in the email and select “Show original”.
  • Find the IP address:
    Look for the “Received” headers in the “Show original” view. The IP address will be listed in the header.
  • Create a filter:
    Click on the “More” option, then “Show original”. Copy the IP address and go to “Settings” -> “See all Gmail settings” -> “Filters and Blocked Addresses.”
  • Add a new filter:
    Click “Create a new filter” and paste the IP address in the “Has the word” field. You can also choose to match the address exactly.
  • Choose an action:
    Select “Skip the inbox (archive it)” or “Move it to the Trash.” Choose your preferred option and click “Create filter”. 

2. Using Blocked Senders (Computer):
  • Open Gmail: Go to your Gmail inbox in your web browser.
  • Report as Spam: If you’re receiving unwanted emails from the IP address, click “Report spam” on those emails.
  • Find the sender’s address: If the email is from a sender you want to block, click on the sender’s name or email address.
  • “Block [sender]”: A popup will appear. Click the “Block [sender]” option.
  • Confirmation: Gmail will confirm that the sender has been blocked, and future emails from that address will be sent to Spam. 
3. Using Google Workspace Admin Console (for Admins):
  • Admin Console Access: Sign in with an administrator account to the Google Admin console.
  • Gmail Compliance: Go to “Apps” -> “Google Workspace” -> “Gmail” -> “Compliance”.
  • Add a rule: Click “Configure” or “Add Another Rule” and choose “Inbound” for “Email messages to affect”.
  • Advanced content match: Add an expression using “Advanced content match” and specify the IP address you want to block using a regular expression (e.g., 123.456.789.012).
  • Save the rule: Click “Save”. 
Important Notes:
  • Blocking can be temporary:
    If you later need to unblock the IP, you can adjust the filters or remove the blocked sender. 

  • IP Addresses are not always stable:
    IP addresses can change, so you might need to re-block the IP if it changes. 

  • Consider the impact:
    Blocking a single IP address might inadvertently block legitimate emails from other users who share the same IP block. 

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