Forums/Knowledge base/Contacts

Suppressing email addresses

Stoo Gill | Product Manager
posted this on November 9, 2011, 14:42


Suppressed contacts
Suppressed domains
Adding suppressions
Suppression history and reversing
Adding suppressions to a specific
address book only

Select Contacts > Suppressed contacts. The next screen features five tabs:


Suppressed contacts

The Suppressed contacts tab displays a list of all your contacts who have unsubscribed from your communications, plus those who have been automatically unsubscribed by reaching their bounce threshold or registering as an ISP spam complainant.

You can manually add a contact to this list by clicking on New contact suppression button. See the Adding suppressions section below for further detail.

Suppressed domains

The Suppressed domains tab displays a list of all domains that have been suppressed. By adding suppression at a domain level, all email addresses in your address books for that domain are automatically suppressed. This saves you a lot of time when a company asks to be removed as a whole from your lists.

To add a new domain to this list, click on the New domain suppression button. See the Adding suppressions section below for further detail.

Adding suppressions

You can add suppressions via the New contact suppression and New domain suppression buttons. These enable you to upload or manually add any email or domain addresses you would NOT like included in your campaign sends.

If you would like to suppress contacts from a specific address book, please see Adding suppressions to a specific address book only section below for further detail.


File removal - if you have a lot of email addresses and/or domains to suppress, you may prefer to do this via upload of a CSV, TXT, Excel or ZIP file. Use the Choose File button to select the file on your computer.

You can enter an email address to be notified once the import has finished – this is particularly useful if you are uploading a large list. Once you have entered your addresses or selected your file, click on the Suppress these contacts from my account button. Your entries are processed and a summary report is displayed.

add_suppression_manually.pngManually - use this tab to enter email addresses or domains individually.

Simply type the email address into the area provided ensuring you enter only one email address per line as shown in the example. When satisfied, click Suppress. Each of these email addresses will be added to your suppressed contacts list and excluded from any future email sends.

If you wish to suppress all email addresses at one company then simply add the domain instead, as shown below:


Again, make sure there is only one entry per line. When ready, click Suppress.

Regardless of the method you choose, whether manually entering, pasting text or uploading a file, email addresses suppressed will appear on your Suppressed contacts tab.

Domains will appear on your Suppressed domains tab and any email addresses relating to those domains will appear on your Suppressed contacts tab.

Suppression history and reversing suppressions

The Suppression history tab shows only manually imported file suppressions created in the last 30 days. It does not show any manual suppressions you may have made via clicking on More actions when inside an address book.


You can delete imported file suppressions from this list. It will result in the contacts being deleted from the whole system, although a message will inform you of this consequence before you complete the deletion. You will then need to add any contacts back to the address book or books they were previously part of in order to restore them and thus reverse the suppression.

Adding suppressions to a specific address book only

You have the ability to upload or manually add any email addresses for suppression in a specific address book only. This has the advantage of not suppressing a contact or contacts across all of your account's address books, meaning they will be excluded from sends to that specific address book but will still able to receive campaigns sent to your other address books.

To do this, select Contacts and then click on the Properties icon properties_icon3b.png. This will open the address book for editing. Tick Show advanced options to produce four extra tabs for selection:


Select Suppressions. This tab will list all of the individual suppressions for this address book, if there are any.

Click New contact suppression to add your suppressions, either via a file or manually (just as detailed under Adding suppressions above).




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Marten Hynard

So, how do I reverse a suppression that was suppressed more than 30 days ago? I note that the 30 days cannot be extended to a longer period. After 30 days suppression does it become irretrievable?


Further than that I have just suppressed a contact, and find the suppression history states:

" The last 30 days of your imports are listed below.

No imports found  "
So ... what's going on here?


March 10, 2013, 05:30
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Tom Corbett

Hi Marten

You would need to get in-touch with your account manager to address any files over 30 days old and they are reviewed on a case by case basis after that period of time. The feature lists any suppression's made by CSV imports and not any manual suppression's made in app such as clicking more actions > suppress contact. 

March 11, 2013, 15:42
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Marten Hynard

Thanks Tom. I read elsewhere ("Suppressing contacts") "Use suppressions to temporarily, or permanently, stop contacts from receiving your emails.." and I don't want to nit-pick but it does say above "The suppression history tab shows ALL suppressions created in the last 30 days.." (my caps). So I assumed I could suppress one single contact from receiving one particular campaign and reinstate the contact immediately after - simpler than creating a segmentation rule.

May I suggest that the documentation be updated or, better, that the system allow what I was attempting?

March 11, 2013, 17:45
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Rizwana Qureshi
Hanks Database Solutions UK Limited

if you are uploading csv files - these supress at the global level against the contacts list? when you send any campaign?

January 6, 2014, 18:04
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Ricoh (Cahir dev acc)

If we wish to supress a recipient from multiple accounts, how is this achieved without having to go through each one individually?



April 2, 2014, 10:16
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Neal Goldsmith


Suppressing recipients from multiple accounts is only currently possible via sharing suppression lists. However, this will result in sharing all of your parent account's suppressions with chosen child accounts, not just a single isolated suppression if this is what you’re specifically looking to achieve.

If sharing all suppressions across your accounts does provide a solution in this instance, then you can do this by logging in as your parent account and going to Contacts > Suppressed contacts > Shared lists. Here you will find a list of all of your accounts. Select accounts to make them share your parent account's suppressions. Deselected accounts will continue to operate their own suppression lists. Once happy, click UPDATE and the suppressions will be shared across the selected accounts.

Hope this helps.

April 9, 2014, 16:17