Warmbox

Spec sheet

Purpose

Warmbox says it automatically sends and interacts with emails from a connected inbox to raise sender reputation and email deliverability.Read 8 Oct 2026 · warmbox.ai

Security

The privacy policy describes TLS and at-rest encryption, encrypted mailbox credentials, access controls, production access monitoring, backups, independent penetration tests, and SOC 2 Type II compliance.Read 8 Oct 2026 · warmbox.ai

Support

The pricing FAQ says all plans include in-app chat support and an online help center; some sales subscribers may qualify for personalized onboarding and an account manager.Read 8 Oct 2026 · warmbox.ai

Headquarters

Tallinn, EstoniaRead 28 Sep 2026 · warmbox.ai

Agency features

The product page says users can add inboxes and team members and create dedicated brand workspaces for agencies.Read 8 Oct 2026 · warmbox.ai

DNS and blacklist checker

Its checker audits IP and domain blacklist status and inspects SPF, DKIM, and DMARC using more than 120 checkpoints; the feature page calls it free.Read 8 Oct 2026 · warmbox.ai

Email providers

Listed providers include Gmail, Outlook, Yahoo, SendGrid, Sendinblue, SMTP, Amazon SES, Mailgun, iCloud, AOL, Zoho, and Yandex.Read 8 Oct 2026 · warmbox.ai

Mailbox data handling

Warmbox says it processes service-generated warm-up emails and technical deliverability signals, not the content of users’ other correspondence, and does not sell this data or use it for advertising.Read 8 Oct 2026 · warmbox.ai

Monitoring

The dashboard reports sent emails, reply rate, spam score, warm-up schedule, and inbox reputation.Read 8 Oct 2026 · warmbox.ai

Network

Warmbox describes a private network of more than 35,000 inboxes spanning more than 100 countries.Read 8 Oct 2026 · warmbox.ai

Privacy compliance

The pricing FAQ states that Warmbox meets GDPR and CCPA requirements for personal data storage and use.Read 8 Oct 2026 · warmbox.ai

Warm-up actions

It sends warm-up emails, removes them from spam, opens and bookmarks them, and replies to some messages.Read 8 Oct 2026 · warmbox.ai

Warm-up controls

Warm-up options include growth, flat, random, and custom settings, with scheduling and configurable timing, daily volume, and reply rate.Read 8 Oct 2026 · warmbox.ai

Warm-up duration

Warmbox estimates that first results usually take 15–30 days of uninterrupted warming, depending on the email address and provider.Read 8 Oct 2026 · warmbox.ai

Plans and prices

Every Warmbox plan and price →

Where Specifiction places it

• Email Warmup Software#23 of 247.2
• Email Outreach Software#33 of 347.0