Intelligent Email Warmup & Peer-to-Peer Pool
Protect your domain reputation and ensure maximum primary inbox placement. OutSends provides built-in multi-provider warmup that exchanges contextual, realistic emails across verified mailboxes with automatic reply threading and gradual ramp-up.
How it works
Get started with email warmup pool in a few simple steps.
Connect your mailboxes
Add your Gmail, Google Workspace, Zoho, or SMTP sender accounts with 1-click OAuth or credentials.
Enable warmup pacing
Set your daily warmup target, increment pace, and configure delivery windows to match business hours.
Monitor reputation score
Track your spam score, inbox placement rate, and peer engagement in real time from your dashboard.
Safely launch cold campaigns
Once your sender accounts reach prime inbox health, start sending live outreach with active background warmup.
Why OutSends for email warmup pool
Everything you need, integrated in one workspace.
- Multi-provider pool (Gmail, Zoho, SMTP) avoids artificial same-network footprints
- Contextual quoted reply threading mimics authentic business conversations
- Smart working-hours window prevents suspicious overnight email activity
- Included directly on paid plans — zero expensive per-mailbox warmup add-ons
Related features
Explore more capabilities that work alongside email warmup pool.
Frequently asked questions
How long should I warm up a new email account before sending?
We recommend warming up new accounts for at least 14 days before launching live cold campaigns. OutSends gradually increases volume from 3 to 35+ emails daily.
Does warmup continue while my campaigns are active?
Yes! OutSends keeps warmup running in the background while your campaigns send, maintaining consistent engagement and high sender scores.
Does OutSends charge extra per warmed mailbox?
No. OutSends includes warmup directly in your plan limits (3 on Starter, 10 on Pro, 20 on Growth, 50 on Team) with zero per-mailbox surcharges.
Ready to try email warmup pool?
Create a workspace, connect a sender, and launch your first campaign \u2014 free, no credit card.