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My customer wants to encrypt sensitive data (subscriberkey) in email urls. The url points to external webpages.

I guess we could use EncryptSymmetric if it wasn't so that the subscriberkey is added automatically to all links from email_XtraLinkParameters which are handled in Setup > Parameter Management.

A bit shortened, that tracking string looks like this: ven=ExactTarget&%%__AdditionalEmailAttribute5%%&scid=%%_subscriberkey%%

So a link that plainly would look like this in the actual email:

https://www.example.com

will look like this in the inbox:

https://www.example.com?ven=ExactTarget&%%__AdditionalEmailAttribute5%%&scid=003abcdefghijklmno

So hence my question: Is there any way to encrypt the bit that comes after "&scid=" ?

Currently I think our only option is to remove the subscriberkey from those parameters and then just add when needed on links within the email itself. That way we can encrypt it, and I guess decode on the external site. But removing the subscriberkey from "email_XtraLinkParameters" is our last resort as it is needed in other scenarios.

Ideas?

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  • Where would you be decrypting it? Commented Jul 30 at 17:27
  • @AdamSpriggs I would be decrypting on an external website. It seems it is possible (yet MC support says it is not) Commented Jul 31 at 6:59
  • It's possible, but not supported. Commented Jul 31 at 11:13
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