Warmy.io and Woodpecker have officially partnered, combining their strengths to offer cold email senders an unmatched deliverability-plus-outreach solution.
In this article, you’ll learn exactly how the integration works, what each platform does, and how you can use both to dramatically improve your email campaign results.
Why Warmy.io and Woodpecker partnered
Cold email is a precision game. You can write the perfect subject line, craft a personalized message, and build a flawless sequence. But if your emails land in spam, none of that matters.
- As an AI-driven email warmup platform, Warmy.io builds and maintains your sender reputation so your emails consistently reach the inbox.
- Woodpecker is a leading cold email automation tool. It offers all you need to cold email in one place: pre-configured domains and emails, automatic email and domain warm-up, quality lead finder (+1B database), unlimited email verification (for free!) and automated email sequencing. Like all outreach tools, it relies on strong deliverability to perform.
The partnership was a natural fit: Woodpecker now integrates Warmy.io’s warmup technology directly into its platform, adding deliverability capabilities that take cold email performance to the next level.
Hot tip: Before launching any cold email campaign in Woodpecker, run a free Email Deliverability Test on Warmy.io. You’ll get a detailed report on your inbox placement rate, spam score, and authentication setup so you can fix any issues before they hurt your campaign.
How Woodpecker and Warmy.io work together
Here’s a practical breakdown of how the two platforms complement each other in a real cold email workflow:
1. Warmy.io handles the email warmup
At Warmy.io, we focus on helping businesses build and maintain strong email deliverability, ensuring emails don’t end up in dreaded spam folders or “Promotions” tabs.
Before you send a single cold email through Woodpecker, Warmy.io conditions your inbox and helps users establish a strong sender reputation. It sends and receives emails with real users, marks messages as important, pulls them out of spam, and gradually builds your sender reputation with inbox providers. This process uses AI to customize the warmup strategy based on your domain age, email provider, and prior sending history.
Result: Your domain is healthy and trusted before your campaign starts. This increases the likelihood of your campaigns landing in the inboxes of your target recipients.
2. Woodpecker runs your cold outreach
With your deliverability foundation in place, Woodpecker takes over the campaign layer. You can set up personalized email sequences, automate follow-ups, integrate LinkedIn touchpoints, and use Woodpecker’s AI email writer to craft messages that get replies.
Woodpecker’s Inbox Rotation feature helps you scale across multiple email accounts without triggering spam filters.
Result: Your outreach runs efficiently and at scale.
3. Warmy.io monitors your deliverability as you scale
Scaling a cold email campaign increases the risk of reputation damage. Warmy.io’s Domain Health Hub continuously monitors your mailbox health, runs automated weekly deliverability tests, and alerts you to any issues so you can course-correct before your sender score takes a hit.
Result: You grow your campaign with confidence, not guesswork.
What does this partnership mean for Woodpecker users?
Enhanced deliverability for cold email campaigns
- Sending cold emails without ensuring high deliverability can result in your messages being ignored, marked as spam by recipients, or filtered out automatically by ESPs and spam filters. Each of these signals damages your sender reputation and the worse it gets, the more aggressive those filters become. It’s a toxic cycle.
- With Warmy.io’s email warmup feature running in the background, your sender reputation improves automatically and stays intact. This ensures that when you use Woodpecker for your cold outreach, your emails are much more likely to land in the intended recipient’s inbox, and not spam folders.
AI-powered personalization and automation
- Personalizing each cold email increases your chances of a reply. Woodpecker makes this easy through Spintax and custom fields, letting you vary phrasing and tailor content to each recipient at scale. As a welcome side effect, that content diversity across your campaign also signals authenticity to ESPs which gives your deliverability an extra boost.
- With Warmy.io, we ensure that all emails in your sequences land where they’re supposed to. The two platforms also team up to keep your content clean: Woodpecker’s Spam Checker lets you scan each email against anti-spam filters before launching your campaign, and Warmy’s Template Checker (also available as a Chrome extension) complements this by flagging any spam trigger words or phrases that could hurt your deliverability.
- Together, this means your personalized emails will reach your prospects more effectively.
Safer scaling with inbox rotation, health monitoring, and adaptive sending
- Woodpecker’s Inbox Rotation feature helps scale your campaigns while keeping your email accounts safe from exceeding sending limits. It does so by automatically distributing the email volume to multiple mailboxes in a campaign.
- Combined with Warmy.io’s monitoring of mailbox health via the Domain Health Hub, you can ensure that your cold outreach campaigns are scaling well without putting your sender reputation at risk.
- Woodpecker’s Adaptive Sending works quietly in the background to protect your deliverability as you scale. When it detects your sending volume approaching your email provider’s daily limit, it automatically reduces your sending rate which keeps your accounts safe from blocks and ensures your campaign flow stays consistent over the long run.
Full authentication coverage
- Woodpecker covers the essentials with its Domain Check-up feature, validating your SPF and DKIM records and flagging any configuration issues so your domain is ready to send.
- Warmy complements this with our free SPF Record Generator and free DMARC Record Generator.
- Together, Warmy and Woodpecker ensure your domains are in top shape for cold outreach.
Regular email deliverability testing
- Always know where you stand in terms of inbox placement as you scale your Woodpecker cold email campaigns.
- With Warmy, you can run email deliverability tests anytime, or you can even set up an auto-run which will automatically test inbox placement weekly at a day you can specify.
- This gives you clarity and insight on the deliverability of your cold email campaigns.
Feature comparison: Warmy.io vs. other email warmup integrations
| FEATURE | Warmy | Others |
| Dedicated AI for user’s deliverability | ✅ (Adeline AI) | ❌ |
| Unlimited mailboxes can be connected | ✅ | ✅ |
| Maximum warmup emails a day | Millions | < 5,000 |
| Network size | >1M+ active mailboxes | Varies |
| Warm up with clicks | ✅ | ❌ |
| Blacklist monitoring | ✅
(included in the email deliverability test) |
Usually comes as an add-on |
| API Access | ✅ | Varies |
| Seed Lists (Gmail, outlook, Yahoo) |
✅ | ❌ |
| Auto-archives warmup emails | ✅ | ❌ |
| Reporting | Advanced | Basic |
| Warmup customization | Advanced (distribution per provider, language, topic, temperature, engagement patterns) |
Limited to sending schedules only |
| Multiple language options for warmup emails | ✅ | ❌ |
| Topic warmup | ✅ | ❌ |
| Spintax on the user template | ✅ | Varies |
| Email validation | ✅ | Varies |
| Scalable for teams | ✅ (+ has an agency dashboard) | Robustness varies |
| Email Deliverability Test | ✅ | Varies |
| Dedicated Customer Success Manager | ✅ | ❌ |
| Dedicated deliverability expert for every customer | ✅ | ❌ |
| Email Template Checker inside the platform | ✅ | Varies |
| Email Template Checker (free Chrome extension) | ✅ | ❌ |
| Email Template Checker | ✅ (with Chrome Extension) | Varies |
| Email deliverability A/B testing | ✅ | ❌ |
| SPF Record Generator | ✅ | ❌ |
| DMARC Record Generator | ✅ | ❌ |
| Inbox Academy – free masterclass for email deliverability | ✅ | ❌ |
Bottom line: If you’re a Woodpecker user, activating the Warmy.io integration gives you the warmup infrastructure your campaigns need to succeed.
How this partnership changes the cold email game
Our partnership with Woodpecker is an exciting step forward in offering a more complete solution for cold email outreach. As Woodpecker empowers teams to personalize, automate, and scale their email campaigns, Warmy.io ensures that these emails have the best chance of being put in front of your ideal clients.
In a nutshell, Warmy provides a strong foundation for your cold emails to reach their full potential.
Ready to optimize your cold outreach and see the full potential of your campaigns? Try Warmy.io or Woodpecker (or both!) today for free, and let us help you achieve optimal email deliverability alongside Woodpecker’s powerful cold email features!
