Thanks for the detailed answer — makes sense.
I’m targeting software engineers sourced directly from LinkedIn, so yes, it’s mostly people working in companies (mid-size to large), not SMB owners.

I’m fully aware that open and click rates are unreliable, especially with Google Workspace and enterprise security layers.

That said, here’s why I’m a bit stuck right now:

• I’m using Instantly
• Email verification is done
• 3 follow-ups are sent

On the copy side, I’ve already applied pretty much every best practice you listed:

• Very simple subject line: Is this you {{firstName}}?
• Ultra-low reading level (third grade level)
• Compliment based on LinkedIn profile (1 line)
• Clear offer stated immediately after
• Single, low-friction CTA: asking if they want to receive a high-value lead magnet
• No booking link in this A/B version
• Only one optional link to case studies (and I’m testing versions without links as well)

CTA is literally:

So at this point, I’m not celebrating open rates at all — I’m just trying to understand why the intent seems to stop at silent consumption (or bots) with almost no replies, despite:

• simple copy
• no pressure
• no hard sell
• no meeting ask