Since 2023, the Apollo email warmup no longer works. Because of a breach of Gmail’s policy, Apollo no longer offers this feature that can round off Apollo’s offer and help you dodge spam filters. If you want to protect your sender reputation and email deliverability, the good news is that there are plenty of email warmup tools on the market.
Today, we share some of the best, with their pros, cons, and up to date pricing.
Why was the Apollo email warmup tool shut down?
Apollo’s email warmup feature was discontinued and eventually shut down mainly because of compliance and reliability issues with how it operated, especially with Gmail and similar providers. Here’s what’s understood from user reports and community discussion.
Compliance with Gmail policy
Apollo’s email warm up pool reportedly didn’t align with Gmail’s policies for how warm-up traffic should be generated and handled. Because of this non-compliance, the warmup feature was pulled back by Apollo rather than continue running a service that could risk deliverability or violations.
Service reliability problems
Users experienced ongoing interruptions with the warm-up service, making it inconsistent and unreliable. This contributed to Apollo deciding to discontinue it rather than support a feature that didn’t work well for many accounts.
Uncertainty about future availability
After stopping the warm-up pool, there was no clear roadmap from Apollo for bringing it back in a compliant or improved form. This left users looking for alternatives built specifically for deliverability.
In short, it wasn’t a single public announcement from Apollo but rather a decision driven by technical and compliance challenges with major inbox providers, especially Gmail. The feature disappeared, forcing teams to find tools with better inbox trust and deliverability-focused warm-up networks.
The best alternatives to Apollo email warmup for 2026
If you’re looking to improve your inbox placement, visibility and more and dodge the spam folders, there are plenty of email warmup tools that replace Apollo’s warmup feature. And in fact, many of the tools we’ll mention integrate with Apollo, so you won’t waste any time switching back and forth between platforms.
Woodpecker
Woodpecker has a deliverability and email warmup feature built into the Woodpecker platform for outreach and sales teams that send cold email sequences. It is ideal for teams that want a warm-up solution tightly linked to sending campaigns, so sender reputation improves as campaigns and inboxes ramp up.
Key features
- Warmup that exchanges real engagement signals with other Woodpecker accounts and verified inboxes
- Automatic warmup pacing that adjusts as your sending volume grows
- Inbox placement insights showing whether messages land in primary or promotions or spam
- Native integration with Woodpecker sequences so warmup and outreach work together
- Support for multiple accounts and domains in one workspace
Pros and cons
✅ Works seamlessly with outreach sequences and sending workflows
✅ Adjusts warmup volume automatically based on your activity
✅ Clear visibility into placement results
❌ Best value comes when you use Woodpecker for sending as well as warmup
❌ Setup can feel a bit technical for first-time users
❌ Reports are focused on placement and not deep reputation signals
Pricing starts at $24 for the Starter plan with two free warmups.
Try Woodpecker for free today!
Smartlead
Smartlead has an email warmup feature within its outreach platform that helps improve sender reputation and inbox placement as part of cold email sequences. It is a good fit for sales and marketing teams that already use Smartlead for outreach and want to build deliverability without adding another separate tool.
Key features
- Automated warmup that exchanges emails and engagement signals to improve reputation
- Custom warmup pace and daily volume controls
- Integration with Smartlead campaigns so warmup feeds into outreach workflows
- Inbox placement tracking to monitor where emails land
- Support for multiple sender profiles and domains
Pros and cons
✅ Integrated warmup and sending workflows make setup easier
✅ Custom volume settings let you tailor to your sending goals
✅ Placement tracking provides visibility into deliverability
❌ Warmup features are not as advanced as specialist tools
❌ Best results depend on overall sending practices
❌ Limited standalone analytics compared with dedicated warmup services
Pricing starts at $39 per month which gets you unlimited warmups
Skrapp
Skrapp has an email warmup tool as part of its suite of sales and outreach tools, built to help senders improve deliverability and sender reputation for cold email campaigns. It is ideal for sales teams, lead generation professionals, and marketers who already use Skrapp for prospecting and want warm-up included in the same platform.
Key features
- Automated warmup that sends and receives messages to build trust with inbox providers
- Daily volume controls so you can scale warmup to your sending needs
- Inbox placement tracking showing where messages land
- Unified dashboard inside the Skrapp platform
- Support for multiple sender accounts
Pros and cons
✅ Integrated with lead generation and outreach features
✅ Simple warmup setup suitable for beginners
✅ Inbox placement tracking included
❌ Warmup features are less advanced than specialist tools
❌ Best value when used with other Skrapp features
❌ Reporting depth is limited compared to dedicated warmup platforms
Pricing starts at $18 per month
Warmy.io
Warmy.io is an email warm up tool designed to help senders improve inbox placement and build a strong sending reputation through real engagement signals. It is aimed at sales teams, marketers, founders, and agencies that send outreach and want emails to land in primary inboxes more often.
Key features
- Automated warming that sends and receives messages with other Warmy accounts
- Custom warmup plan settings for volume and pace
- Reports showing inbox placement trends and engagement
- Support for multiple sender profiles in one account
- Team collaboration features for group workflows
Pros and cons
✅ Real engagement with other accounts can improve reputation
✅ Custom settings give you control over pace and volume
✅ Easy setup and clear placement reporting
❌ Pricing may be higher than simple warmup services
❌ Advanced analytics are limited compared to some alternatives
❌ Best results still require good sending domain practices
Pricing is not available publicly and you can only book a demo
MailReach
MailReach is an email warmup service focused on helping senders improve their reputation and inbox placement using real interactions and behavior signals. It suits marketers, sales teams, and anyone sending outreach who needs a tool dedicated to deliverability.
Key features
- Real network of inboxes that open, reply, and engage with your emails
- Warmup speed and volume settings you can adjust
- Placement tracking showing inbox or spam results
- Daily performance reporting
- Multi sender account support
Pros and cons
✅ Real engagement helps increase trust with mailbox providers
✅ Adjustable settings for different sending strategies
✅ Tracks placement over time
❌ May be pricier than entry level warmup tools
❌ Reporting and analytics are more basic than some competitors
❌ Larger volume plans are expensive
Pricing starts at 25EUR per inbox per month
Snov.io
Snov.io has warmup in their suite used by sales and outreach teams to improve deliverability and sender reputation for cold email campaigns. It works best for users already using Snov.io for lead generation who want warmup integrated with their outreach stack.
Key features
- Automated warmup that sends and receives emails to build sending reputation
- Customizable warmup schedules and daily volumes
- Deliverability insights showing inbox placement trends
- Integration with Snov.io outreach workflows
- Support for multiple sender accounts
Pros and cons
✅ Integrated with outreach and lead management workflow
✅ Custom settings help tailor warmup to your needs
✅ Delivers basic inbox placement tracking to improve inbox placement rates
❌ Less advanced deliverability reporting than specialist tools
❌ Best benefits come when you use other Snov.io features
❌ Can be confusing if you only need warmup
Pricing starts at $29.25 per month, which gets you three mailbox warmups
InboxAlly
InboxAlly is an email warmup and deliverability tool built for teams that rely on cold outreach or high-volume campaigns and want consistent inbox placement. It is commonly used by sales teams, marketers, and agencies that need to build or repair sender reputation using controlled engagement signals.
Key features
- Seed-based warmup that opens, replies, moves emails, and marks them as important
- Inbox placement tracking that shows whether emails land in primary, promotions, or spam
- Configurable warmup volume based on your sending goals
- Support for multiple sender profiles and domains
- Free trial available to test deliverability impact
Pros and cons
✅ Strong engagement signals from controlled seed inboxes
✅ Clear visibility into inbox placement
✅ Works well for reputation recovery
❌ Higher starting price than many warmup only tools
❌ Costs increase quickly as volume grows
❌ Less focused on outbound specific workflows
Pricing starts at $149 per month
Mailivery
Mailivery is an email warmup service built for sales and outreach teams who want to improve inbox placement and sender reputation with real inbox interactions. It uses real conversations between accounts to simulate genuine email traffic that builds trust with providers like Gmail and Outlook.
Key features
- Real reply traffic between real inboxes for natural engagement
- Custom warmup schedules and volume per account
- Deliverability tracking showing inbox or spam placement
- Warmup for multiple accounts in one workspace
- Domain health and reputation metrics
Pros and cons
✅ Generates real interactions to raise sender trust
✅ Clear reports on deliverability and reputation
✅ Easy to set up for teams of any size
❌ Can be pricier than basic warmup services
❌ Some settings need manual tuning
❌ Reporting is not always in real time
Pricing starts at around $29 for 100 warmup emails
Wrapping up
Just because Apollo’s warmup feature is gone, it doesn’t mean your email performance has to suffer. All of the tools listed can help you with managing multiple inboxes and fixing your deliverability issues. But what if you wanted more than just automated email warmup?
Woodpecker can help you with reliable email deliverability through warmup, but also with full-fledged outreach. You can build sequences, personalize emails, follow-up and close the deal, all in one tool. On top of proper warmup, we give you multiple mailboxes and all the tools necessary to turn cold email into a profitable channel for your business.
Try it today, completely free.