Instead of Warmerly
Warmerly alternatives
Warmerly pairs email warmup with daily checks of SPF, DKIM, DMARC, MX and TLS. Its warmup uses threaded exchanges with quoted replies and natural delays, and it rescues warmup messages that reach spam. Google Workspace and Microsoft 365 connect through OAuth; other providers can use IMAP and SMTP. A free plan includes one email account and 100 campaign emails per month, while paid plans start at $19 per month. Android, API and web are supported, with LinkedIn and WhatsApp offered as additional channels; LinkedIn costs $50 per account monthly.
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Folderly
Free plan APIWebB2B teams seeking campaign drafting and deliverability checks — Folderly adds AI campaign drafts, pre-campaign placement tests and technical diagnostics, while Warmerly emphasizes mailbox warmup and daily authentication checks.
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SendScale Email Warmup
Free plan APIWebCold outreach teams wanting warmup controls and account rotation — SendScale adds a private network of over one million inboxes, readiness tracking and account rotation, while Warmerly checks mailbox authentication daily.
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Swokei Email Warmup
Free plan WebWeb design agencies and freelancers running personalized outreach — Swokei combines prospect website audits, personalized outreach and a CRM with free warmup, while Warmerly focuses on warmup and deliverability monitoring.
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TrulyInbox
Free plan APIWebTeams wanting detailed warmup history and API workflows — TrulyInbox adds 90-day history, a deliverability score, blacklist checks and configurable warmup strategies; Warmerly checks SPF, DKIM, DMARC, MX and TLS daily.
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WarmEnvelopes
Free plan WebResend users seeking simple warmup scheduling — WarmEnvelopes sends real messages through Resend to inboxes you control, without simulated engagement or spam rescue, unlike Warmerly’s warmup exchanges.
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WarmupHero
Free plan ExtensionWebUsers seeking free, provider-flexible email warmup — WarmupHero is free and reports inbox, spam and category placement, while Warmerly adds daily authentication checks and paid campaign plans.
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darkzwarmer
Free plan LinuxMacSelf-hosted+1Technical users who want self-hosted warmup across domains — darkzwarmer is a self-hosted Python project requiring two domains and mail infrastructure, while Warmerly provides hosted warmup and mailbox monitoring.
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EmailWarmup
Free plan APIWeb - 9
Mailreach
Free plan APIWeb - 10
Warmforge
Free plan APIMacWeb+1 - 11
EmailWarmup.com
Free trial APIWeb - 12
InboxAlly
Free trial APIWeb - 13
InboxWarm.ai
Free trial APIWeb - 14
Inbox Warmup
Free trial APIWeb - 15
MailStrike
Free trial APIWeb - 16
MailToaster
Free trial Web - 17
InboxPlan
Free trial Web - 18
Mailwarmup
Free trial Web - 19
Mailwarm
Paid AndroidiPhoneWeb - 20
Warmbase
Free trial Web - 21
Warmup Inbox
Free trial APIWeb - 22
Warmy
Free trial APIWeb - 23
Warmbox
Paid Web
The alternatives span warmup services, deliverability diagnostics and broader outreach tools. Some add campaign drafting, inbox placement histories or prospect research, while others trade hosted convenience for a self-managed setup. Compare the warmup method and its engagement features, the depth of monitoring, supported mail connections and platforms, and the account or campaign limits that matter to your workflow. Price structure also differs: options include annual billing, a free-only service, and paid plans with warmup bundled into outreach. Consider whether you need Warmerly’s daily authentication checks and spam rescue, or would rather prioritize a different combination of tools.