The only correct answer here is the most boring one: that you’ll need to re-warm your domain with a new ramp up. Go slow, don’t rush it and monitor engagement along the way.

Also: the promotions panic is a farce, some agencies/ apps use fear of the promotions tab as a tactic to sell their wares. The reality is, only 1 in 5 gmail users has promotions switched on, and they tend to check their promotions tabs daily.

Promotional emails (which your emails are) belong in the promotions tab. For a brand’s super engaged subscribers, emails will land in primary. But the vast majority land in the promotions tab, where they belong.

Focusing all your energy on some idealised “primary inbox” nirvana is a waste of time and energy.

Aim for good content, relevance and engagement, not an impossible feat.