Inbox Warmup

Name: Inbox Warmup
Price: 39 USD

Web · API · paid plans from $39/mo

Visit site Alternatives

Freedom report

One barScore 5.0

Free tierNo free tier on record
Open codeNo open-source code on record
Runs widely1 of 6 device platforms
DocumentedPlans, terms and facts published

Inbox Warmup is ranked #10 of 24 in email warmup software on Freedom251. It runs on API, Web. There is no free plan. A free trial is offered. Paid plans start at $39/mo.

Inbox Warmup plans and pricing

All plans

Launch $39/mo $39/month from day 8; $1 for the first 7 days 5,000 email credits/month · 75 emails/hour account-wide · unlimited authenticated domains · email support inboxwarmup.io · 4 Oct 2026

Growth $99/mo $99/month from day 8; $1 for the first 7 days 20,000 email credits/month · 200 emails/hour account-wide · unlimited authenticated domains · priority support inboxwarmup.io · 4 Oct 2026

Professional $199/mo $199/month from day 8; $1 for the first 7 days 100,000 email credits/month · 500 emails/hour account-wide · unlimited authenticated domains · API and webhook access inboxwarmup.io · 4 Oct 2026

Agency Not published Custom Custom email credits · custom hourly speed · unlimited authenticated domains · multiple client workspaces · dedicated onboarding inboxwarmup.io · 4 Oct 2026

Compared on email warmup software

Free plan: No
Custom warmup schedule: Yes
Spam monitoring: Yes
Multiple mailboxes: Yes

Best Inbox Warmup alternatives

See all 20

One bar Warmerly Free tier No. 1$19/mo6.5 One bar SendScale Email Warmup Free tier No. 2$3,528/mo6.4 One bar TrulyInbox Free tier No. 3$1.83/mo6.4 One bar WarmEnvelopes Free tier No. 4€9/mo6.4 One bar darkzwarmer Paid plans No. 5—5.5 No signal EmailWarmup Paid plans No. 6$19/mo5.4

The record

Purpose: Inbox Warmup connects SMTP infrastructure, authenticates domains, gradually warms sending activity, monitors reputation signals, manages replies, and supports controlled campaign sending from one dashboard.
SMTP and authentication: It supports SMTP ports 465 with SSL/TLS, 587 with STARTTLS, and compatible custom ports, and checks SPF, DKIM, DMARC, Return-Path, ownership, and tracking records.
Warm-up controls: Warm-up automation gradually increases activity, rotates safely, respects mailbox limits, and can pause when health signals need attention.
Campaign features: Campaign tools include templates, message personalization, timezone scheduling, hourly and daily limits, and pause or resume controls.
Mailbox providers: The managed mailbox network lists Gmail, Workspace, Outlook, Yahoo, and IMAP accounts.
Integrations: The site lists Google Postmaster and Yahoo sender-data integration support.
Security: The site says SMTP credentials are designed to be encrypted at rest, scoped to the owning account, protected through sessions, and kept out of browser storage and application logs.
Support: The pricing page lists email support for Launch, priority support for Growth, priority technical onboarding for Professional, and dedicated onboarding and priority support for Agency.
Credit rules: One credit is deducted when an outgoing message is accepted by the configured SMTP server, monthly credits reset after each verified renewal, and credits do not roll over.
Placement limitation: The site says warm-up can improve readiness but does not guarantee inbox placement, opens, or replies.
Intended users: The site describes the product for sales and growth teams, agencies, and infrastructure teams.
Free tools: The site offers free SPF and DMARC checkers, a warm-up calculator, an SMTP tester, and a deliverability audit request.
Operator: The site footer says Inbox Warmup is operated by Blueberry Web Solutions Pvt. Ltd.
Headquarters: Kolkata, West Bengal, India
Price from: $39/mo

Where it ranks on Freedom251

Best Email Warmup Software in 2026#10 of 24

Is Inbox Warmup yours?

Claim it for free: prove the domain, then correct facts, plans and screenshots. An editor reviews every change.

Claim it free Promote Inbox Warmup

Sources

inboxwarmup.io· checked 4 Oct 2026