I would be happy to argue for "indefinitely".
M
> On 8 Mar 2017, at 08:38, Mike Penton <[log in to unmask]> wrote:
>
> I thought I'd create a separate question for this as it's only vague related to the email address retention question.
>
> How long is it acceptable to retain details on a suppression list?
>
> Obviously when data is imported onto a marketing database we don’t want to re-add details that have already been suppressed, but how long do we retain their suppression? There is an argument to keep these details for an extremely long time years (or even 'forever'?!) as they would only be taken off the suppression list if they were to resubscribe or opt back in? If we are regularly adding to our databases from various sources including third parties I think this makes sense, but goes against retention practices.
>
> Thanks
> Mike
>
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