I am also dealing with something similar after switching to Brevo’s transactional service. A few of my customers have complained about the tracking links being flagged as untrustworthy, and I’ve noticed that some email security tools don’t like them either.
I am concerned it could affect our sending reputation as well. It would definitely be helpful if the option to disable link tracking was extended to all paying customers, not just enterprise ones. This is happening for one of my client’s business where he is offering womens bamboo pajamas with higher discounts on this Christmas.
I know they will fix it sooner but it is damaging our client’s businesses as it is just before Christmas, so we all can understand its importance.