Warm up, recover, and stay warm
The biggest mistake businesses make? Creating a new email address and immediately sending campaigns. The result: spam. EmailWarmup.app prevents that problem — and fixes it when the damage is already done. It takes time for damaged accounts, but the system works on it every single day.
Warmup foundation
Everything needed to build sender trust before you scale outreach.
Free extra slots with Gmail and Outlook
Connect an existing Gmail or Outlook account to the network and earn 2 extra warmup slots per account. The more accounts you add, the more capacity you get — at no extra cost. The network grows stronger and you get more room.
Real emails between real businesses
Your account exchanges genuine business emails with other companies in the network. Emails are opened, replied to, and marked as important. 70% of exchanges deliberately go between different providers for stronger reputation building.
Choose your warmup speed
Pick the pace that fits your situation. Careful mode takes around 70 days (max 40 emails/day) and is ideal for new or damaged accounts. Standard takes 49 days (max 50/day). Fast mode completes in 42 days (max 100/day) and suits established domains.
Reputation score per provider
Your overall score and separate scores for Gmail, Outlook, and Yahoo are calculated every day. See exactly which provider needs attention. A score above 80 means you're ready to run campaigns.
Recovery and deliverability
Tools to recover from spam placement and verify inbox performance.
Emails rescued from spam
When emails land in spam, the system moves them back to the inbox and marks them as important. For damaged accounts this happens intensively — it takes time, but every day ground is regained.
Realistic reply threads
The system creates natural conversations. Emails are replied to with realistic delays and multiple levels deep. Email providers see a genuine conversation pattern, not one-way traffic.
Inbox placement test
Send a test email and see exactly where it lands across Gmail, Outlook, and Yahoo. Know whether you're hitting the inbox, the promotions tab, or spam — before you send a real campaign.
Technical health and compatibility
Stay technically compliant and connected across major providers.
Email authentication check
SPF, DKIM, and DMARC are verified every day. The system knows the settings for all major providers — Google Workspace, Microsoft 365, SendGrid, and more. Issues are flagged immediately.
Blocklist monitoring
More than 10 blocklists are scanned daily, including Spamhaus, Spamcop, and Barracuda. The moment your domain appears on one, you get a notification so you can act fast.
Works with Gmail, Outlook, and more
Connect Gmail, Outlook, Yahoo, or any custom domain. Settings for Gmail and Outlook are filled in automatically. SendGrid is also supported via API.
Automation and safety
Protection layers that keep your reputation stable over time.
Behaves like a real person
The system respects office hours, time zones, and weekend settings. Emails are sent at natural intervals — more in the morning, fewer around lunch. No recognizable bot pattern.
Automatic inbox filter
When you connect your account, the system automatically installs an inbox filter. Warmup emails are neatly sorted into a separate folder, keeping your own inbox clean.
Early warning system
The system detects problems before they escalate. Reputation dropping? Spam rate climbing? You get an alert and the sending volume is automatically adjusted to prevent damage.
Staying warm is just as important
After warmup, it doesn't stop. Without maintenance, your reputation drops back within weeks. The system automatically switches to maintenance mode and stays active at low volume — so all the work wasn't for nothing.
Safe network
Accounts that mark warmup emails as spam are removed from the network after three violations. Accounts from the same company never email each other. The network stays reliable for everyone.