List Management: What is Global Suppression List?

Last Updated: Dec 30 2018 04:52 pm UTC

Global Suppression List

What is GSL? 

The Global Suppression List (GSL) is a specific list of contacts in your Mailigen account, which contains emails that have used your unsubscribe form to 'unsubscribe from everything' and don't want to receive any further campaigns. It also contains any emails that you decide to add manually so they wouldn't receive any news from you.  

Why do I need it? 

GSL is an important addition to the whole process of reaching the right audience. Emails that are not interested in receiving messages from you are something you want to avoid as it can lead to spam complaints and damage your reputation as a sender. If a person unsubscribes from just one of your lists and isn't presented with an option to unsubscribe from all your lists (if there is more than one) there is a high chance your emails will be reported as an abuse/spam, which affects the deliverability of your campaigns. 

Some examples when emails should be added in GSL manually: 

  •  email user has made a complaint 
  •  client suspects the email to be a spam trap 
  •  email has been unsubscribed from another system (not Mailigen) 
  •  email has been unsubscribed from several lists it has been a part of 

When you will attempt to import emails that are in your GSL to any of your lists, you will get a message that will remind you of the emails that won't be included. 

Activating GSL 

When enabling GSL you will provide your subscribers with an additional option to unsubscribe from all your lists and further mailings. You will also be able to add emails that shouldn't receive campaigns from you, manually. To do so, follow these steps: 

STEP 1 – Find the GSL page under Lists tab 

You will be able to find and manage contacts in your GSL there as well as adding new ones to the list. 

Note: You can only remove manually added emails (status: suppressed by you) from this list. Emails that have unsubscribed from all the lists (status: unsubscribed) can be removed from GSL only if they subscribe again through double opt-in.

STEP 2 – Enable GSL. Click on "manage settings" and enable/disable the GSL.

Note: When enabling GSL, it will automatically update your unsubscribe form and add an additional option to unsubscribe from all your lists. (see an example below in "Changes In Web Forms") 

STEP 3 - Add new emails to the list. There are 3 ways to do that: 

  • Add one-by-one 

  • Import a file 

  • Paste from excel 

Changes in web forms 

When GSL is activated, your unsubscribe form will have "Unsubscribe from everything" option added, which you will be able to customize. 

Creating a new list 


When creating a new list (for existing lists you can change it under list settings), you will be able to

  • display chosen lists in other web signup forms  

When you tick this box, you give permission to display this list in unsubscribe form (link in update profile form), for other lists as well. You can change that on the web forms page. 

  • Add a public description that will be displayed in signup forms 

"Edit subscription" option will be added to update profile form, which will bring you to the unsubscribe form. You will be able to disable it.

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