Warmupinbox review — Joute

The essentials

Email inbox warmup tool to improve deliverability
Starting at $9/month
Automated send-and-reply between network accounts to warm up your email
For solopreneurs and small teams sending cold email

What is Warmupinbox?

Warmupinbox is an email inbox warmup tool. The idea: before you launch cold email campaigns, your email address needs a positive reputation with ISPs (Gmail, Outlook). Warmupinbox automatically sends and replies to emails between accounts in its network to signal to ISPs that your address is active and trustworthy. The higher the reputation, the less your cold emails land in spam.

Strengths

Lowest price on the market

$9/month is the cheapest warmup tool out there. For solopreneurs with one or two email addresses, it's very accessible.

Simple setup

Connecting your email account (Gmail, Outlook) and activating warmup takes a few minutes. No complex configuration.

Network of accounts for warmup

The larger the network of accounts interacting with yours, the more effective the warmup. Warmupinbox has a decent-sized network.

Limits

Smaller network than competitors

Lemwarm or Mailreach have larger networks, which can produce higher reputation scores.

No advanced deliverability features

Warmupinbox does warmup and that's it. No header analysis, no inbox placement testing, no advanced reputation scoring.

Pricing

Starting at $9/month. Check warmupinbox.com for plans and daily email limits.

Alternatives

For more powerful warmup: Lemwarm. For full deliverability: Mailreach. For warmup included in your sending tool: Smartlead has warmup built in.

Verdict

Warmupinbox is the budget pick for email warmup. For solopreneurs who want better deliverability without spending much, $9/month is justified. For larger teams, more complete tools are worth the investment.