Cold emails only work if they arrive.
A new sending account goes straight to spam without a warmup. EmailWarmup.app builds your sender reputation automatically so your cold outreach reaches real inboxes.
What EmailWarmup.app does for cold email senders
Start sending cold emails sooner
A new email account needs time to build trust with email providers. EmailWarmup.app accelerates that process. The fast warmup completes in 42 days. The standard warmup takes 49 days.
Real network, real results
Your account exchanges genuine business emails with other companies in our network. Emails are opened, replied to, and marked as important. Email providers see real engagement and learn to trust your address.
Know where your emails land before you send
Use the inbox placement test to check whether your messages hit the inbox, the promotions tab, or spam across Gmail, Outlook, and Yahoo. Test before every campaign.
Keep your reputation healthy between campaigns
Maintenance mode keeps a low volume of warmup emails running after your warmup completes. Your reputation stays strong even during quiet periods between outreach campaigns.
Frequently asked questions
Why do cold emails go to spam?
Email providers treat new or low-activity sending addresses as suspicious. If you start sending cold emails from a fresh account without warming it up first, most of those emails will land in spam before anyone reads them.
How long should I warm up before sending cold emails?
EmailWarmup.app's reputation score tells you when you're ready. A score above 80 means you're good to go. With the standard warmup, most accounts reach that threshold in around 49 days. The fast warmup gets there in 42 days.
Can I warm up multiple sending accounts at once?
Yes. The Professional plan supports 3 accounts, Business supports 10, and Enterprise supports 25. Each account is warmed up independently.
Should I stop sending cold emails during the warmup?
You can continue sending cold emails during the warmup, but keep the volume low at first. The warmup works best when your sending patterns are consistent. Sending a large campaign before your reputation is established can set back your progress.
What happens if I pause my cold email outreach for a few weeks?
Sender reputation can decay during long quiet periods. Maintenance mode keeps a low volume of warmup emails running automatically so your reputation stays healthy even when you're not actively sending campaigns.
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.