Your sender reputation decides where your emails land.
Gmail, Outlook, and Yahoo score every sending address before they deliver a message. A low score means spam. EmailWarmup.app builds your score automatically so your emails reach the inbox.
How EmailWarmup.app builds and protects your reputation
Real emails between real businesses
Your account exchanges genuine business emails with other companies in our network. Emails are opened, replied to, and marked as important. Email providers see this activity and learn to trust your address.
Reputation score from 0 to 100
Your score is calculated every day from inbox placement, reply rate, open rate, warmup progress, and your own email activity. A score above 80 means you're ready to run campaigns.
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 before you send a real campaign.
Maintenance mode keeps your reputation healthy
Once your warmup is complete, the system switches to maintenance mode. A low volume of emails continues automatically to preserve the reputation you've built.
Frequently asked questions
What is a sender reputation?
Your sender reputation is a score that email providers assign to your sending address and domain. It's based on factors like how often your emails are opened, whether recipients mark them as spam, and whether your DNS settings are correctly configured. A high reputation means your emails reach the inbox. A low reputation means spam.
How long does it take to build a good reputation?
For a brand new email address, EmailWarmup.app's standard warmup takes around 49 days. The careful warmup takes around 70 days and is better for new domains or accounts with a damaged history. Your reputation score updates every day so you can track progress.
What happens to my reputation if I stop warming up?
Sender reputation can decay if you stop sending emails or if your sending patterns change dramatically. That's why EmailWarmup.app includes maintenance mode: after your warmup completes, the system keeps sending a low volume of emails to maintain your score.
Can EmailWarmup.app repair a damaged reputation?
Yes. The careful warmup mode is designed for accounts with a damaged reputation. It takes around 70 days and uses a conservative sending volume to rebuild trust with email providers gradually.
Does EmailWarmup.app work alongside my regular email sending?
Yes. EmailWarmup.app runs in the background while you continue using your email account normally. The warmup emails are handled separately and won't interfere with your regular sending.
Join the priority waitlist
EmailWarmup.app is in development and onboarding paid beta users in batches. Join the waitlist to get launch updates, early-bird pricing, and first access when your batch opens.