Most cold email agencies send clients a campaign performance report that shows open rates, reply rates, and meetings booked. Almost none of them include a deliverability report. That's a problem — because when deliverability drops, it looks identical to a copy problem in a basic performance report. Clients blame the messaging. The real issue is infrastructure. Show them the difference.
💡 TL;DR
A cold email agency deliverability report should cover six metrics: domain reputation, inbox placement rate, spam complaint rate (keep under 0.08%), bounce rate (keep under 2%), DNS authentication status, and inbox health per sending domain. Report monthly at minimum, weekly during active campaigns. Pre-warmed inboxes from Litemail at $4.99/inbox make these numbers easier to maintain — 94–96% inbox placement from day one gives you strong baseline metrics to report from.
Clients hire cold email agencies for pipeline. They don't hire you for deliverability management — they don't know enough about it to ask for it. But when deliverability fails, the pipeline fails. And when pipeline fails, they blame the agency.
A structured deliverability report does two things: it gives you early warning of problems before they hit campaign performance, and it demonstrates to clients that you're managing their sending infrastructure professionally. Both outcomes are valuable. The report doesn't need to be complex — it needs to be honest and specific.
Here's the exact template to use.
The 6-Section Deliverability Report Structure
Use this structure for every client, every month. For clients in active campaigns, produce it weekly.
Section 1: Domain Health Overview
One row per sending domain. Include: domain name, Postmaster reputation status (Good/Medium/Low), days since last DNS check, current DKIM key strength, DMARC policy in place.
Section 2: Inbox Placement Rate
What percentage of emails sent in the reporting period landed in primary inbox vs Promotions vs spam. Track this per inbox and per domain. Target: 90%+ primary inbox placement. Flag anything below 85% for immediate investigation.
Section 3: Spam Complaint Rate
Pull from Google Postmaster Tools. Report current rate and 30-day trend. Target: under 0.08%. Flag anything approaching 0.05% for proactive list review. This is the metric clients need to understand — it's the one that leads to suspension.
Section 4: Bounce Rate
Hard bounce rate from last 30 days of sends. Target: under 2%. Report which list segments are contributing the most bounces. This section drives list quality conversations with clients.
Section 5: Inbox Rotation Health
Status per active inbox: reputation status, daily send volume, age, last replacement date. Flag any inbox showing Medium or lower Postmaster reputation for rotation out.
Section 6: Actions and Recommendations
Three to five specific actions: what needs to change, why, and by when. This section is what clients actually read — make it concrete and non-technical.
Benchmarks to Include in Every Report
Metric | Target | Warning Zone | Action Required |
|---|---|---|---|
Domain Reputation | Good / High | Medium | Low / Unknown |
Inbox Placement Rate | 90%+ | 80–90% | Below 80% |
Spam Complaint Rate | Under 0.05% | 0.05–0.08% | Above 0.08% |
Hard Bounce Rate | Under 1% | 1–2% | Above 2% |
DNS Authentication | All passing | One partial | Any failing |
Including these benchmarks in the report gives clients context for the numbers — they can see at a glance whether their account is in the green, yellow, or red zone on each metric.
How to Present Deliverability Reports Without Losing Clients
Deliverability data is technical. Clients are not. The report needs to be honest about problems without triggering panic — and needs to show that you have the expertise to fix what's broken.
Three principles for presenting deliverability reports:
Lead with the headline: One sentence — is the account healthy, needs attention, or is there an active problem? This tells the client what to think before they read the data.
Translate every metric: Don't write "domain reputation: Medium." Write "domain reputation is at Medium — this means some emails may be routing to spam instead of primary inbox. We're reducing daily send volume for 5 days and reverifying the contact list to bring this back to Good."
End with the plan: Every section that shows a problem needs a specific action, owner, and timeline. Clients don't need to understand the technical details — they need to know what's being done and when it'll be resolved.
Tools That Make Deliverability Reporting Faster
Building the report manually from multiple data sources takes time. These tools speed up the data collection:
Google Postmaster Tools: Domain reputation, spam rate, delivery errors — free and required
mxtoolbox.com: DNS status across all domains in one dashboard — free
GlockApps: Inbox placement testing across Gmail, Outlook, Yahoo — paid but worth it for agency reporting at scale
Mailreach or Inboxally: Ongoing inbox reputation monitoring with trend data — good for agencies managing 30+ inboxes
Budget around 45 minutes to produce a monthly deliverability report for one client. For 10 clients, that's 7–8 hours per month — a manageable investment that prevents the far more expensive consequence of undetected deliverability failure.
Starting Campaigns With Strong Baseline Metrics
The easiest way to produce good deliverability reports is to start with good deliverability. Agencies that use Litemail pre-warmed inboxes at $4.99/inbox start every client campaign with Good Postmaster reputation, 94–96% inbox placement, and pre-configured DNS. The baseline metrics in month one are strong without any remediation work.
Agencies using fresh inboxes with manual warm-up typically spend the first 4–8 weeks of a client engagement getting the infrastructure to a functional state. That's time not spent on what the client actually hired them for. Pre-warmed inboxes front-load the infrastructure quality that produces strong deliverability report metrics from the start.
Key Takeaways
Include a deliverability report alongside every campaign performance report — when deliverability drops, it's invisible in basic performance data and looks like a copy problem.
The six metrics every agency deliverability report should cover: domain reputation, inbox placement rate, spam complaint rate, bounce rate, DNS status, and per-inbox health.
Keep spam complaint rates under 0.08% and bounce rates under 2% — these are the two metrics that most directly drive delivery suppression and client churn risk.
Translate every technical metric into plain English with an associated action — clients don't need to understand DMARC, they need to know what's being done about it.
Allow 45 minutes per client per month for deliverability reporting — it's preventive maintenance that avoids the far larger time cost of reputation recovery.
Frequently Asked Questions
How often should a cold email agency send deliverability reports to clients?
Monthly minimum. Weekly during active campaigns or when any deliverability metric is in the warning zone. A monthly deliverability report alongside the campaign performance report is the standard; anything that drops to warning zone status should trigger an immediate out-of-cycle report to the client.
What should a cold email agency deliverability report include?
Six sections: domain health overview (Postmaster reputation per domain), inbox placement rate, spam complaint rate (target under 0.08%), bounce rate (target under 2%), inbox rotation health (per sending inbox status), and specific actions and recommendations. Include benchmarks so clients can interpret the numbers without needing deliverability expertise.
How do I explain deliverability problems to clients without losing them?
Lead with the headline (is this a small issue or a serious one), translate every metric into plain English, and always pair a problem with a specific action and timeline. Clients don't penalise agencies for problems — they penalise agencies for problems they didn't know about or that weren't being managed proactively. A clear report with a clear plan demonstrates expertise, not failure.
Which tools do agencies use to track cold email deliverability at scale?
Google Postmaster Tools (free, required) for domain reputation and spam rates. mxtoolbox.com for DNS status. GlockApps for inbox placement testing. Mailreach or Inboxally for ongoing reputation monitoring if managing more than 30 inboxes. Most agencies build a simple tracking spreadsheet or Notion dashboard that pulls these data points into one view weekly.
Start Every Client Campaign With Strong Baseline Metrics
Litemail pre-warmed inboxes arrive with Postmaster-verified Good reputation, automated DNS, and 94–96% placement. Agencies start with strong deliverability report numbers from day one. $4.99/inbox/month. No minimum order.
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