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Product / Deliverability Center

Catch deliverability problems before they cost you replies

The Deliverability Center sits on your MailOptimal dashboard. It scores every domain, mailbox and inbox provider across warmup and live campaigns, explains what slipped, and puts the fix one click away.

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app.mailoptimal.comLive demo
Health 96/100One score per sender
One-click fixesFor every issue
0–100
Health score on every domain and mailbox
3
Levels: domain, mailbox and inbox provider
3 months
Of warmup and campaign history
1 click
To pause, slow down or re-warm a sender
Deliverability CenterHealth scoreNeeds attentionWarmup reportingCampaign reportingDomain, mailbox, providerFAQStart free
Score

One number for the whole workspace

The first thing on your dashboard is a health score from 0 to 100, with the change since the last period. It blends where your warmup mail lands with how your live campaigns perform, so one bad domain cannot hide behind a good average.

Workspace health
Change since last period
+4
81/ 100
0Needs workHealthy100
How the score is weighted
Warmup placement 50%Reply rate 40%Setup 10%
Warmup inbox
94.7%
Reply rate
5.4%
Bounced
3.1%
CriticalSpam placement at 27.6% and climbing
acmegrowth.co · domain · 27.6% warmup spam · 1.4% reply
Spam rate rose 11 points in two weeks and replies from this domain have dropped to 1.4%.
Lower daily volumeRestart warmup
HighBounce rate 6.8%, above the 5% safety line
sam@tryacmegrowth.com · mailbox · 3,420 sent
Most bounces come from one imported list. Verify it before the next send.
Pause mailboxRun placement test
MediumMicrosoft 365 inbox rate 6 points below Google
Microsoft 365 · provider · 92.3% inbox · 31.7% of volume
Outlook-hosted recipients are filtering more of your mail than Gmail ones.
Fix DNSRun placement test
Attention

Know what broke, why, and what to do

Problems are ranked by severity and written in plain language, each with the fix next to it. You do not need to read a chart to know which sender to pause.

  • Spam spikes, bounce breaches and reply drops flagged early
  • Pause a mailbox, cut volume or extend warmup from the issue itself
  • Jump straight to the DNS fix or an inbox placement test
Every issue comes with
Severity rankingA plain-language causeThe fix next to it
Warmup

See where warmup mail actually lands

Inbox and spam placement over time for every mailbox, with its reputation score and warmup age. You spot a domain sliding before it ever reaches a campaign.

  • Inbox versus spam rate by day, for up to three months
  • Reputation score per mailbox
  • Unlimited warmup on every plan, see Deliverability and Warmup
Warmup placement
All mailboxes · last 14 days
94.7% inbox
14 days agoToday
InboxSpam
Spam
5.3%
Reputation
86
Warmup age
41 days
Per mailbox
Inbox vs spam rateUp to 3 monthsReputation score
Health by domain
Delivered is not the same as landed
2 need attention
DomainReply rateHealth
acme-mail.io
98.6% delivered
7.1%
94
getacme.com
97.9% delivered
5.8%
88
acmehq.co
96.4% delivered
4.6%
79
tryacmegrowth.com
93.1% delivered
2.9%
61
acmegrowth.co
88.4% delivered
1.4%
44
Campaigns

Measure deliverability by the replies you get

Delivered only means the receiving server accepted the email, not that it reached the inbox. Mail in the inbox gets human replies and mail in spam does not, so reply rate is the clearest live signal. Above 5% is healthy, under 3% needs a look.

  • Delivered, hard and soft bounces per domain
  • Human reply rate, auto-replies excluded
  • A health score on every row
Per domain
DeliveredHard and soft bouncesHuman reply rateHealth score
Breakdown

Find the exact domain, mailbox or provider at fault

Switch levels to see whether the problem is one mailbox, one domain or one inbox provider. Filter across thousands of mailboxes and open any row for its full history.

Warmup inbox rate by provider
Pinpoint where placement drops
Outlook is the outlier
Google Workspace98.0%
Zoho Mail97.1%
Yahoo and AOL95.7%
Microsoft 36592.3%
Outlook and Hotmail89.3%

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FAQ

Questions, answered.

Still unsure? Book a demo and we will walk you through it.

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What is the Deliverability Center?
A report on your MailOptimal dashboard that monitors deliverability across warmup and live campaigns. It scores every domain, mailbox and inbox provider, flags problems as they appear and lets you act on them straight away.
Where do I find it?
On the dashboard, as soon as you have a connected mailbox. There is nothing to install or switch on.
How is the health score calculated?
It is a 0 to 100 score weighted from warmup inbox rate (50%), campaign reply rate against a 6% benchmark (40%) and setup maturity (10%).
Why use reply rate to judge campaign deliverability?
Delivered only means the receiving server accepted the email. Mail in the inbox gets human replies and mail in spam does not, so reply rate is the clearest live signal. Above 5% is healthy and under 3% needs attention.
What can I do from the report?
Pause a mailbox, lower its daily volume, extend or restart warmup, open the DNS fix for a domain, or run an inbox placement test, all from the issue itself.
How much history is kept?
Three months of warmup and campaign data. View today, 7 days, 30 days or the full three months.
InfraOptimal

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Stay in the inbox, and know it

Watch warmup and campaigns together and fix issues before replies drop. Free for 14 days.