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Email warmup

Every mailbox lands in the primary inbox

DitLead plugs every connected mailbox into a 55,000+ inbox warming network. Real conversations, AI-driven patterns, provider-tuned ramp curves — your reputation builds on its own.

55,000+ real inboxes in the network — not a simulator
Gmail, Outlook, M365 and SMTP — provider-tuned curves
Live reputation monitoring with auto-throttle
Production-ready reputation in 14–21 days
Included on every paid plan, no per-mailbox fee

Start free trial See live reputation

7-day trial · Credit card required · Cancel anytime

Warmup · alex@acme.ioReputation 92

100%0%Day 30

INBOX

95%

SPAM

PROMO

The numbers behind 95% primary4 metrics

A warmup network most teams pay extra for

METRIC / 01

55K+

Inboxes in network

Real conversational warmup across the pool — never simulated.

METRIC / 02

95%

Primary inbox delivery

Average across active DitLead mailboxes, last 90 days.

METRIC / 03

14d

Avg time to safe send

Most mailboxes hit production reputation in two weeks.

METRIC / 04

Per-mailbox warmup cost

Included on every paid plan, unlimited inboxes.

In the product

Warmup running on every mailbox.

Each connected account warms automatically — daily activity, sent-vs-received and a live health signal, right beside your campaign sending limits.

DitLead email accounts screen showing per-mailbox warmup activity and campaign sending limits

Benchmarks8 metrics

What teams ship on DitLead.

Illustrative benchmarks, not measured guarantees — your results depend on ICP, offer, list quality and copy.

WARMUP NETWORK

55K+

Real inbox participants worldwide

PRIMARY INBOX

95%

Placement after 7 days of warmup

TIME TO READY

14d

Median fresh-mailbox to safe-send threshold

REPUTATION SCORE

0–100

Live per-mailbox health monitoring

AUTO-THROTTLE

Live

Volume cuts at first sign of reputation drift

PROVIDERS COVERED

All

Gmail · Outlook · M365 · Yahoo · SMTP

DEDICATED THREADS

1:1

Each mailbox warmed against the network

MAILBOXES / SEAT

∞

No per-mailbox warmup fee

How it works

Connect, warm, send — no babysitting

Warmup runs as soon as a mailbox is connected. You don't configure curves or pacing; DitLead does it per provider.

STEP / 01

Connect a mailbox

Gmail, Outlook, M365 or SMTP — link in two clicks. Warmup starts automatically the same minute.

STEP / 02

AI runs natural conversations

55,000+ inboxes exchange replies, open and star messages on a curve calibrated to each provider.

STEP / 03

Reputation watched 24/7

Volume, bounce, spam and engagement are monitored live. Unhealthy senders slow before you notice.

Inside the network

Real mailboxes. Real conversations. Real reputation.

Most 'warmup' tools simulate engagement. DitLead's network is made of real mailboxes exchanging real mail — which is the only thing providers actually score.

01 · Network

A 55,000+ inbox network — not a simulator

Other tools fake warmup by sending to themselves. DitLead's network is made of real production mailboxes warming each other with real conversational copy.

Provider-distributed: Gmail, Outlook, M365 and SMTP
Every exchange opened, scrolled, replied to — like real mail
Volumes and timings vary per provider's signals

Warmup · alex@acme.ioReputation 92

100%0%Day 30

INBOX

95%

SPAM

PROMO

02 · Curve

A ramp curve providers reward

Warmup volume starts tiny and compounds on a curve calibrated against each provider's reputation model. You don't pick the curve; DitLead does, per mailbox.

Per-provider warmup curves (Gmail vs M365 differ)
Auto-throttle on the first sign of soft bounces
Reaches production reputation in 14–21 days

Deliverability score+12 this week

92Excellent

SPFPass

DKIMPass

DMARCPass

Spam-word check0 flagged

Custom tracking domaintrack.acme.io

Blacklist statusClean · 12 lists

03 · Always on

Warmup never turns off

Reputation is a moving target. DitLead keeps a low-volume warmup loop running in the background indefinitely so your reputation stays healthy as cold volume scales.

Background warmup runs even while campaigns send
Reputation alerts via Slack / email / webhook
One-click pause if a mailbox needs a break

PLATE · 01Sender pool · livefig.

Capacity∞Unlimited

alex@acme.ioActive

84%

alex@acme.coActive

71%

sales@acme.ioActive

62%

ops@acme.coWarming

48%

team@trygrowth.comWarming

31%

SENT TODAY

12,847

+18%

INBOX

95.1%

primary

OPEN RATE

71%

30d avg

What's inside

Warmup engineered for cold email at scale

The features that keep reputation healthy through 14-day ramps and 14-month grinds.

FEAT / 01

55,000+ inbox network

The largest real-mailbox warmup pool in cold email — and growing weekly.

Real inboxes

FEAT / 02

AI conversation patterns

Replies, threads, scrolls, stars and folder moves — patterns providers reward.

Provider-safe

FEAT / 03

Provider-tuned ramp

Gmail, M365, Outlook and SMTP each have their own curves — applied automatically.

Per-provider

FEAT / 04

Live reputation monitor

Bounce, spam, engagement and content scored continuously — alerts before damage.

24/7 watch

FEAT / 05

Auto-throttle

Senders losing reputation slow themselves down — no manual pause needed.

Hands-off

FEAT / 06

Included, unlimited

Warm every mailbox you connect. No per-mailbox fee, ever.

$0/inbox

The trade

What you get vs. what you stop tolerating.

Left is what arrives the day you switch. Right is the busywork you stop maintaining.

INCLUDEDWhat you get10 items

0155,000+ real inboxes worldwide warming up new mailboxes daily
02Provider coverage: Gmail, Outlook, M365, Yahoo, custom SMTP
03Per-mailbox reputation score 0–100, live
04Auto-throttle on reputation drift, before you damage send
05SPF, DKIM and DMARC audit on every connected mailbox
06Spam-folder placement detection with auto-recovery
07Warmup baked into every paid plan — no add-on
08Smart pacing as you ramp send volume
09Domain-level reporting + alerts
10Auto-enroll on every new connected mailbox

EXCLUDEDWhat you skip10 items

01$30/mailbox/month warmup as a paid add-on
02Brand-new domains burning out in week 1
03Generic "warmup emails" everyone in the network recognizes
04No visibility when reputation is sliding
05Manual SPF/DKIM/DMARC checks before launch
06Warmup tools that don't reach Outlook or M365
07Throttle alerts you only see after damage is done
08Buying secondary domains because you killed the primary
09Sending into spam at full volume for two weeks
10Lemwarm or Mailreach as a separate tool to manage

vs the alternatives6 rows

The warmup network that's actually big enough

Most warmup add-ons share the same small pool. DitLead's network was built for cold volume at scale.

Capability	DitLead	Apollo	Instantly	Smartlead	Lemlist
Real-mailbox warmup network	55K+	Limited	Add-on	Limited
Included in plan (no add-on fee)
Provider-tuned ramp curves				Manual
Live reputation monitoring			Limited
Auto-throttle on reputation drop				Manual
Per-mailbox cost	$0	$30/mo	$25/mo	Included	$29/mo

FAQ12 entries

Warmup, explained

Still curious? Our team responds in under an hour.

Talk to sales

Email warmup is the process of gradually ramping a mailbox's sending volume while exchanging realistic conversations with other inboxes. It builds a positive sending reputation with providers like Gmail and Outlook so your cold emails land in the primary tab, not spam.

Every new mailbox you connect plugs into our 55,000+ inbox network. The system sends and replies to realistic conversational emails across the pool, opens and stars them, and gradually scales daily volume — all on a curve that providers reward, not penalize.

Most mailboxes hit production-ready reputation in 14–21 days. You can start sending light cold volume after week one. DitLead keeps warmup running in the background indefinitely to maintain reputation as you scale.

No. Warmup is included on every paid plan with no per-mailbox cost and no limits on how many inboxes you connect. Most competitors charge $20–40 per mailbox per month for the same capability.

Real-time reputation monitoring catches it before you do. DitLead automatically slows the sender, increases warmup volume, and surfaces a recommended fix — usually before any campaign performance is affected.

Gmail, Google Workspace, Outlook, Microsoft 365, AWS SES, SendGrid, Mailgun and custom SMTP/IMAP. Warmup adapts patterns and pacing for each provider's signals.

Warmup is the practice of gradually building positive sender signals (opens, replies, marks-as-important) on a mailbox before sending cold volume. It teaches inbox providers that the sender is human, conversational, and trustworthy — which is the difference between landing in the primary inbox and going straight to spam.

55,000+ real, active inboxes exchange warmup messages with each connected mailbox. Each conversation is multi-turn, opened, replied-to, marked-important and stays in primary — the exact signals providers want from a healthy sender.

About 7 days for a brand-new mailbox to hit a safe send threshold, with a slow volume ramp during the first 30 days. DitLead schedules the ramp automatically so you don't have to think about it.

Yes. The network covers all major providers — Gmail, Workspace, Outlook.com, M365, Yahoo, custom SMTP — and matches like-with-like (an Outlook mailbox warms with Outlook recipients first, etc.) for highest realism.

The auto-throttle cuts campaign volume on the affected mailbox, increases warmup share, and surfaces a reputation alert in Slack/Teams. In most cases reputation recovers within 5–7 days without losing the mailbox.

Included on every paid plan, with no per-mailbox fee. Unlike most competitors that charge $30/mailbox/month, DitLead bundles warmup so cost scales with you, not against you.