Email Warmup Done right

Snov.io Email Warm-up combines leading warmup technologies with our team's extensive experience in email outreach. From an AI-powered dialogue builder to 100% automated warmup campaign sending, it's the warmup tool for achieving great deliverability and better engagement.

You can warm up both custom and free accounts from all major email service providers, from Yahoo to Zoho Mail and beyond. Our tool can help you improve your sender reputation and email engagement, leading to better inbox placement.

You can select Gmail, Outlook, Google Workspace, or any other provider in your warm-up settings. Your mailbox will exchange warm-up emails only with the providers you choose, helping improve deliverability exactly where you need it. If you want to learn more, read our article.

With the Snov.io Pro S plan and higher, you can simultaneously warm up an unlimited number of email accounts. Note that Snov.io’s Email Warmup operates under Fair Use Policy in order to prevent potential abuse.

Our email warmup tool can help you improve your sender reputation and email engagement, leading to better inbox placement. After just one campaign your emails should no longer land in Spam.

Yes! During the warmup campaign, Snov.io Email Warm-up will make sure your emails are tagged as important and placed in the Inbox. This will signal to email service providers that that's where recipients prefer to see your emails, helping you avoid both the Promotions tab and the Spam folder.

Yes, you can! Our software lets you create a warmup campaign for a specific email template. Creating a great engagement history for a specific email template can help avoid the Spam folder and improve the Inbox placement.

The ideal warm-up period is 2–4 weeks, though some domains or mailboxes may need 4–6 weeks depending on the provider and sending history.

Start with 5–10 emails/day, then ramp up to 20–30, eventually reaching 30–50 emails/day if stable.

IP reputation is the trust score email providers assign to your sending IP. It mostly depends on whether your IP is on blacklists — often caused by spam complaints. If your IP gets listed, deliverability drops fast. Snov.io checks your IP against all major blacklists (Deliverability check → Domain and IP blacklists) and alerts you if there’s a problem.

A deliverability or a warmup network is a group of real email accounts that exchange warm-up messages to generate positive signals — sends, opens, and replies. These interactions improve your sender reputation and help emails reach the Inbox.

Snov.io’s inbox pool includes 35,000 high-quality accounts, ensuring consistent, reliable warm-up results.

Warmup is just one part of strong email deliverability. Make sure your domain has proper authentication (SPF, DKIM, DMARC), keep good list hygiene, and avoid sudden jumps in sending volume. In Snov.io, you can buy a domain and create mailboxes with authentication already set up — or check your existing configuration in the Deliverability Toolkit, which also monitors your sender reputation score. To maintain clean lists, use Email Verifier to validate addresses before sending.

Yes. Email warm-up remains effective in 2026 and will continue to work as long as inbox providers still rely on sender reputation, engagement signals, and consistent sending patterns to decide where your emails land.

There are many tools on the market that specialize solely in email warm-up, and some of them do it well. But we generally recommend Snov.io because it gives you the entire workflow in one place: buying domains, creating mailboxes, setting up your infrastructure, running warm-up, checking sender reputation, and launching outreach campaigns, without jumping between multiple platforms.

Yes. Snov.io gives you everything you need to recover it: email verification to reduce bounces, advanced warm-up to rebuild trust, deliverability insights with actionable fixes, and automatic alerts about domain, IP, or mailbox issues. If something affects your reputation, Snov.io tells you — and shows you how to resolve it.