CNIL: recommendation adopted on 12 March 2026 and published on 14 April 2026. The exceptions are narrow, such as the security of authentication or the deliverability of a service the recipient ordered; ordinary reporting of interest in an offer is not one of them. A provider that runs pixels only on the sender’s behalf can act as a processor; using the data for its own purposes changes that assessment.
For addresses collected before 14 April 2026, the CNIL set special rules on informing recipients and letting them object: informing them properly in time, in principle by 14 July 2026, may allow the existing practice to continue unchanged (CNIL FAQ of 22 July 2026). This is not a general permission for new address lists.
AEPD: report 0011/2014 said that a link to a privacy policy and the absence of an objection are not valid consent for pixels in advertising emails. In the Mailtrack case (PS/00328/2022, upheld in RR/00541/2023) it sanctioned the provider of the tool.
Other national authorities, such as Italy’s Garante, are not covered by this answer, and the exceptions of one country should not be applied automatically in another. What HawkOpen does in every country: each tracked email ends with a notice and a link where the recipient can turn tracking off.
Where rules that require consent apply, tracking may start only after that consent has been obtained. The link in the message lets the recipient withdraw consent later.