ZeroBounce vs. Warmy.io

Compare Warmy.io and ZeroBounce features

Which mailboxes are supported?

ZeroBounce, Warmy.io, and nearly all alternatives support virtually any mailbox for their email warmup tools. The only requirement is that your mailbox provider must support an SMTP connection. Most popular email service providers are covered.

Examples include:

• G-Suite / Gmail
• Office 365
• Yahoo
• Ionos
• AWS
• AOL

If you have any concerns about your company’s email provider, check their documentation or reach out to customer support for more information about SMTP.

Daily sending limits, email warmup actions, and account listings

After connecting your mailbox, you’ll need to select an email warm-up service plan that can adequately warm all of your business email domains. Email warmup services typically provide limitations for the number of mailboxes you can warm, the number of daily emails sent, or the number of actions/replies.

The primary difference with ZeroBounce vs Warmy.io is that the latter primarily supports the email warm-up tool. By comparison, ZeroBounce bundles its Warmup service in a complete email deliverability package designed to support and enhance your inbox placement in all critical areas.

As such, ZeroBounce allows you to warm up more domains to support better sending practices with your domain and subdomains. It also protects your sender reputation and tracks threats seamlessly through the same dashboard by adding DMARC monitors, blacklist monitors, and testing to ensure your email campaigns aren’t threatened.

Take a closer look at ZeroBounce’s Warmup process to see how it compares to Warmy.io

Discover Warmup

Email scheduling

Warmy.io’s email warmup tool is automated to send emails on your behalf. As a result, the majority of the process is intelligently controlled to ensure that your domain sends an adequate amount of emails and gradually ramps up over time.

While you cannot schedule email delivery, you can fine-tune the ramp-up process's speed. Warmy.io will provide tips and suggestions on how to use the warm-up tool most effectively.

If you want full control over how your warm-up emails are sent, you can turn to Warmy.io’s Email Seed List service. With this, they’ll provide you with a list of seed email addresses. You then send your campaigns to these addresses, while the seeds provide similar engagement as warmup by marking those messages as ‘Not Spam’ and important.

ZeroBounce, by comparison, allows two methods of utilizing Warmup: the self-managed method or the ZeroBounce-managed method.

For the latter, Warmup operates and behaves very similarly to Warmy.io by automatically sending emails from your domain and gradually increasing the volume as performance improves. You’ll be able to sit back, observe, and tweak settings as needed.

For the self-managed method, you have virtually complete control of your email warmup. ZeroBounce provides a list of seed email addresses for you to target, and you can schedule and send your real email campaigns to these recipients. If you’re an advanced user, this gives you complete control over how you manage your email warmup.

Email warmup reporting dashboard

Your reporting dashboard is one of the most critical components of your email warmup experience. To ensure you’re getting value from the tool, you’ll want detailed statistics on how many emails are sent, where they land, and how your score has improved over time.

Here’s an overview of each platform's reporting metrics:

Email deliverability checks

The core goal of using an email warm-up tool is to improve your email deliverability. Effective warmup can take time, and you’ll want to continue warming inboxes even after you’ve achieved your desired score for continued protection.

However, you’ll want to conduct real tests on where your actual email campaigns are landing before you send them to ensure warmup has been worthwhile.

Both Warmy.io and ZeroBounce include Inbox Placement Tests in their packages, which effectively gauge where your email will land with different ISPs and ESPs. It can also provide data on what’s triggering spam filters and other errors in your email that impact deliverability.

ZeroBounce provides 1 Inbox Placement Test for free with all accounts. However, with the Team Plan that includes Warmup, you’ll receive 100 of these tests to go along with your Warmup tool. Comparatively, Warmy.io provides 1 Inbox Placement Test.

You can acquire more tests for each platform by upgrading to higher-tier plans.

Does ZeroBounce have access to read my emails?

Any email warmup service will read the emails sent to the privately-owned seed email addresses, so that they can perform realistic, authentic behaviors.

However, ZeroBounce doesn’t read any emails found in the connected inbox. The company maintains strict adherence to security and privacy regulations to protect your data.