Folderly From $4.67/mo · Free plan 9.1 Visit SendScale Email Warmup
sendscale.com
What it is
SendScale Email Warmup is a service for warming email accounts and building sender reputation for cold outreach. It connects Google Workspace and Microsoft 365 inboxes through OAuth, then uses AI to exchange unique messages between accounts in a private network SendScale says contains more than one million inboxes. The service says its system opens and scrolls through messages and replies in human-style language. If a warmup email lands in spam, SendScale says it moves the message out, marks it important, and replies. A dashboard tracks daily sends and replies, spam-versus-inbox placement trends, and readiness. SendScale recommends 14 days for new domains and says the dashboard indicates when warmup is complete; warmup can continue at lower volume while campaigns run. The service also describes account rotation for load balancing and a Master Smartbox for consolidating replies. Its free plan includes pre-warmed inboxes, warmup tools, in-product conversational guidance, and campaign access. Paid plans start at $28/mo billed annually. The privacy policy places database servers exclusively in the European Union and describes industry-standard security measures.
Spec sheet
- Purpose
- SendScale says its warmup service uses AI to warm email accounts automatically and build sender reputation for cold outreach.Read 5 Oct 2026 · sendscale.com
- Intended users
- The email warmup page names SDRs, agencies, founders, marketers, staffing agencies, growth teams, freelancers, and recruiters as audiences.Read 5 Oct 2026 · sendscale.com
- Support
- The pricing page lists general support tickets and priority support among plan benefits, but the opened page does not specify which tiers include each.Read 5 Oct 2026 · sendscale.com
- Account limits
- SendScale says Growth tiers allow unlimited sending accounts and that Gmail and Outlook accounts can be mixed.Read 5 Oct 2026 · sendscale.com
- Account management
- SendScale says it can rotate connected accounts for load balancing and consolidate replies in its Master Smartbox.Read 5 Oct 2026 · sendscale.com
- Conversation simulation
- SendScale says its AI sends unique emails between accounts, opens and scrolls through them, and replies using human-style language.Read 5 Oct 2026 · sendscale.com
- Diagnostics
- The dashboard shows daily warmup sent and reply counts, spam versus inbox placement trends, and a readiness indicator.Read 5 Oct 2026 · sendscale.com
- Email providers
- SendScale says existing Google Workspace and Microsoft 365 inboxes can connect through OAuth.Read 5 Oct 2026 · sendscale.com
- Ongoing warmup
- Warmup continues at a lower volume while campaigns run, according to SendScale, to help maintain sender reputation.Read 5 Oct 2026 · sendscale.com
- Privacy commitments
- SendScale says it does not sell or rent personal data for marketing and that it does not sell, share, or rent customer contact lists to third parties.Read 5 Oct 2026 · sendscale.com
- Security and privacy
- The privacy policy says database servers are located exclusively within the European Union and describes industry-standard security measures for personal data.Read 5 Oct 2026 · sendscale.com
- Spam rescue
- When a warmup email lands in spam, SendScale says it automatically moves the message out, marks it important, and replies to it.Read 5 Oct 2026 · sendscale.com
- Warmup duration
- SendScale recommends a 14-day warmup period for new domains and says the dashboard indicates when it is complete.Read 5 Oct 2026 · sendscale.com
- Warmup network
- The product page says accounts join a private network of high-reputation inboxes, and its FAQ specifies over one million inboxes.Read 5 Oct 2026 · sendscale.com
Plans and prices
Free Free Pre-warmed inboxes · warmup tools · in-product conversational guidance · campaign access Read 5 Oct 2026 · sendscale.com
Scale $260 a month $260/mo billed annually 125,000 leads uploaded · 600,000 emails per month · 900 credits Read 5 Oct 2026 · sendscale.com
Starter $3,528 a month $28/mo billed annually 1,500 leads uploaded · 7,500 emails per month · 200 credits Read 5 Oct 2026 · sendscale.com
Growth $9,576 a month $76/mo billed annually 30,000 leads uploaded · 100,000 emails per month · 500 credits Read 5 Oct 2026 · sendscale.com
Strong points and limits
Strong points
- Connects Google Workspace and Microsoft 365 inboxes.
- Dashboard tracks spam and inbox placement trends.
- Warmup can continue during campaigns.
- Free plan includes campaign access.
Limits
- Recommended new-domain warmup takes 14 days.
- Paid plans start at $28/mo billed annually.
- The page does not specify which tiers include each support level.
Who it suits
SendScale names SDRs, agencies, founders, marketers, staffing agencies, growth teams, freelancers, and recruiters as audiences. Its account connection and warmup tools are aimed at users conducting cold outreach.
Verdict
SendScale combines automated warmup with inbox placement monitoring and account management. Review the annual billing and warmup period when deciding whether it fits an outreach workflow.
Where Specifiction places it
- Email Warmup Software#14 of 248.0
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