hey @Chloe
Are you sending from your own domain yet, called a branded sending domain? If not, Klaviyo tells everyone to set one up instead of using Klaviyo’s shared one. And have your Gmail clicks dropped too, or just opens?
If clicks dropped too, more of your emails might be going to spam. Gmail doesn’t pass complaints to Klaviyo, so Klaviyo points you to Google Postmaster Tools to see how often Gmail users mark you as spam. Keep that under 0.1% and never let it hit 0.3%, which are Google’s own limits. Are you already sending less to people who haven’t opened or clicked in a while? If you’re near those limits, I’d cut back on them even more, since sending to them too often hurts how much inboxes trust you.
Cheers
Arpit.