Open rate is the easiest cold email metric to report and the least connected to whether a client is actually getting value. A client who's only ever shown open rate has no way to tell a genuinely strong campaign from a mediocre one dressed up well.
Open rate is influenced heavily by factors that have nothing to do with campaign quality — Apple Mail Privacy Protection alone inflates open tracking in ways that make the number unreliable as a standalone signal. Leading a report with open rate, without reply rate, positive reply rate, and eventually meetings booked right alongside it, lets a weak campaign look fine on paper. That's a bad habit for the agency's own visibility into performance, not just a client-communication problem.
| Metric | Healthy range | If it's below range |
|---|---|---|
| Open rate | 30–55% | Subject line or deliverability problem |
| Reply rate | 2–8% | Targeting or messaging problem |
| Positive reply rate | 0.5–3% | Offer-market fit problem |
| Bounce rate | < 2% | List quality problem — reverify immediately |
| Spam complaint rate | < 0.1% | Pause the campaign and investigate immediately |
| Meeting-to-close rate | Client-dependent | Qualification criteria too loose — see our contracts guide for defining this in writing |
Each metric below range points at a different fix — that specificity is exactly what makes reporting on the full set more useful to a client than reporting open rate alone, because it tells both of you where the actual problem sits.
Weekly reporting should cover sent volume, open rate, reply rate, positive replies, and meetings booked — enough for the client to see the trend without a full narrative every time. Monthly reporting should step back further: ROI analysis where close data is available, a trend view across the full month rather than week-to-week noise, and any strategy adjustments planned for the next cycle.
A weak month reported honestly, with a specific diagnosis and fix, builds more client trust than a good month reported vaguely. If reply rate dropped, say which range it fell into, what you think caused it (deliverability, targeting, seasonality, messaging fatigue), and what you're changing in response. Clients who feel informed tolerate a slow month far better than clients who feel like numbers are being managed around them.
This is also where churn risk actually gets managed — see our agency churn guide for how reporting quality connects directly to whether a client renews.
Open rate is heavily influenced by factors unrelated to campaign quality, including Apple Mail Privacy Protection inflating tracked opens. Reporting it without reply rate, positive reply rate, and meetings booked lets a weak campaign look fine on paper.
Generally 2-8%, with anything below that range pointing to a targeting or messaging problem rather than a deliverability issue, which would show up first in open rate or bounce rate instead.
Weekly reports covering sent volume, open rate, reply rate, positive replies, and meetings booked, with a fuller monthly report adding ROI analysis and a month-over-month trend view where close data is available.
Honestly and specifically — naming which metric fell out of its healthy range, the likely cause, and the change being made in response. Clients tend to tolerate a slow month better when they feel informed than when they sense numbers are being managed around them.
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Written by
Scott Holmes
AI systems consultant based in Barrie, Ontario. Founder of Pinnacle Tech Projects. Has built weekly and monthly client reporting systems for cold email campaigns across multiple industries.
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