Invalid recipients
Hi! Using PHP SDK (v1.1). As of this afternoon (+-4:30pm UTC), emails no longer seem to send or even show up in our activity feed. Found out that sending a trigger returns 'invalid_recipients'. We didn't make any changes to the info we send in the 'to' payload for triggers and I can't seem to find this specific error in the docs. I've tried sending an email where 'to' only contains subscriberId (that I'm sure is valid) and I still get the error. How can I fix this? Because of this, no emails are coming through
