Hey team. I had a 70% open rate after sending 1,000 emails. That dropped to 22% over the next 2,500 emails. Since then they've been at 10% (±1,500 emails) -I'm using tried and true subject lines (like "quick question" and similar). -I'm sending less than 10 emails per day per email account -My accounts are set up the same way as always (with CAs SOPs). Unless there's been an update in the last month that's changed the best practices that I'm unaware of? Any thoughts as to what might be causing this, and more importantly, how to fix it? Could bumping up the response rate from the warmup emails help?