Best way to use an email blacklist/suppression list? | Community
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lukea
New Participant
May 22, 2020
Solved

Best way to use an email blacklist/suppression list?

  • May 22, 2020
  • 2 replies
  • 6341 views

Hi Nation!

 

From our past email service provider, I've got an exported list of a few thousand email addresses, which must not receive any emails - also not via Marketo.

 

What is the Marketo way to ensure that persons, who exist today in the database, as well as persons that might get into the database in the future, and which are also part of the suppression/blacklist, don't get emails?

 

I know about the blacklisted field. However, this can only be set for existing persons. Also, if possible, I would not necessarily want to create a person/database entry for every blacklisted email address.

 

Thank you in advance for your help. 🙂

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Best answer by Darshil_Shah1

While uploading the list if you choose the option "Default(Fast Import)" mode as the List Import Mode then new leads not existing already in the database will be created in marketo lead database, if the lead is already existing it would automatically de-duplicate leads based on email address (default de-duplication method), so as long as if you choose Default(Fast Import) mode while importing then you need not worry for duplication for existing leads. However if you choose the other option "Skip New people and updates" then no new people will be added and none of the existing people will be updated, it will simply show the pre-filtered static list of existing people for use in your marketing activities (which is something you don't want to do). 

 

2 replies

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lukeaAuthor
New Participant
May 24, 2020

Another option that came to my mind was using a smart list, which contains the addresses in an "is" condition. I have read that the textarea for each filter is limited to 50,000 characters, so a filter could contain ~2K addresses. And one could "any" a few filters together. Main question is probably, if this scales well. How would you rate that @sanfordwhiteman & @darshil_shah1 ?

SanfordWhiteman
SanfordWhiteman
New Participant
May 24, 2020
A static list is far preferable.
    Darshil_Shah1
    Darshil_Shah1
    Community Manager
    May 22, 2020

    You can create a static list and upload the email address provided by your email service provider, and in email send campaigns you may use the filter : Member of List Person Not in - <static list name> to ensure that none of the people who mustn't receive email from you receive one.

     

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      lukeaAuthor
      New Participant
      May 22, 2020

      Hi Darshil,

      Thanks for the suggestion, which sounds good to me. When I import the static list of email addresses, would this create a new person entry for each listed email address in the main database? Because that's something I would like to prevent if possible.

      Darshil_Shah1
      Darshil_Shah1Accepted solution
      Community Manager
      May 22, 2020

      While uploading the list if you choose the option "Default(Fast Import)" mode as the List Import Mode then new leads not existing already in the database will be created in marketo lead database, if the lead is already existing it would automatically de-duplicate leads based on email address (default de-duplication method), so as long as if you choose Default(Fast Import) mode while importing then you need not worry for duplication for existing leads. However if you choose the other option "Skip New people and updates" then no new people will be added and none of the existing people will be updated, it will simply show the pre-filtered static list of existing people for use in your marketing activities (which is something you don't want to do). 

       

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