Open Rate

and reply rate

In one sentenceThe percentage of recipients who open an email; reply rate is the percentage who respond. For outreach, reply rate matters more.

What it means

Open rates have become unreliable because privacy features (like Apple Mail Privacy Protection) can register opens automatically. Reply rate, booked meetings and clicks are better signals.

How to use it

• Judge outreach by replies and meetings booked, not opens.
• Test subject lines and first lines one change at a time (see A/B Test).

Related terms

Deliverability Sequence A/B Test