Email Warmup5 Apollo Email Warmup Alternatives in 2025 (Since Apollo Dropped Theirs) Discover 5 Apollo email warm-up alternatives in 2025 to boost deliverability, build domain trust, and prevent emails from landing in spam. Find the best tools today!
In 2024, Apollo silently pulled its warmup feature, leaving cold outreach teams in the dark. Their replacement, "Inbox Ramp Up," just drips emails without building a reputation. No engagement, no tracking, no protection.
If your reply rates have tanked or emails keep getting sent to spam, you're not imagining things. You're experiencing what happens when volume pacing gets mistaken for real warmup.
This guide breaks down the five email warmup tools that actually fix deliverability for users who have used Apollo email warmup. These aren't integrations or all-in-one platforms. They're specialized warmup engines built to: protect your domain, improve inbox placement, and restore trust with mailbox providers.
But…
Certainly, not. Apollo positions Inbox Ramp Up as a warmup feature, but all it does is drip emails. That’s not a warmup.
A real warm-up tool builds sender reputation through engagement, including opens, replies, and spam folder rescue. It monitors where emails land and alerts you to DNS issues before they kill campaigns.
Apollo’s Inbox Ramp Up does none of this:
That’s the kind of support real warmup tools provide, and the five below actually deliver.
MailReach is built for outbound sales teams, lead-gen agencies, and growing companies managing multiple inboxes who treat cold outreach seriously. It builds reputation through real interactions and goes deeper than most tools by helping you pinpoint exactly why emails aren’t landing.
Unlike Apollo’s volume-only ramp-up or tools overloaded with cosmetic fluff, MailReach fixes deliverability at its root, with up to 100 warm-up emails/day, 30K+ inbox network, blacklist alerts, DNS checks, and inbox placement insights.
MailReach sends, opens, replies, and archives messages using a network of 30K+ real inboxes (Gmail, Outlook, etc.). Warmup runs in the background and even cleans up test messages afterward.
With Mailreach, your email warm-up campaign is done with a high-quality network mostly composed of Google Workspace and Office 365 inboxes, with an average network reputation score of 95+.
This is a major advantage compared to most tools, which have their warm-up networks crowded with custom SMTP mailboxes. Receiving positive interactions from custom SMTP mailboxes doesn't have a positive impact—you want to receive positive interactions from Google and Microsoft.
Tracks exactly where your emails land: inbox, promotions, or spam, before a single campaign goes live. Provides per-inbox, per-domain, or per-sequence insights across Gmail, Outlook, Yahoo, and more.
Scans your email content for spam triggers like risky phrases, ALL CAPS, or shady links. (Comes with 20 credits per inbox. You can buy more if needed.)
Detects missing or broken SPF, DKIM, and DMARC records. Also scans public blacklists to catch red flags early.
Randomizes time, volume, and behavior to mimic real inbox activity so no two warmups look the same.
Manages warmup at scale, automates warmup flows, and integrates with your outbound stack.
Works with Gmail, Google Workspace, O365, Outlook, Zoho, Yahoo, Exchange, and any SMTP/IMAP provider.
Warmup Inbox offers an affordable warmup with basic customization. It connects your inbox to a network of ~20,000 accounts to simulate peer-to-peer engagement (sending, replying, archiving, etc.) and gradually build sender reputation.
⚠️ No bulk pricing; managing multiple inboxes gets expensive fast.
Warmbox is a high-end warmup tool designed for teams that want complete control over how their warmup behaves. It uses GPT-4 to generate realistic multi-thread conversations and offers deep customization across warmup pacing, engagement actions, and reputation tracking.
Warmy is designed for senders with very high warmup volume needs, supporting up to 2,000 warmup emails/day per inbox on premium plans. It’s also one of the few tools that supports multi-language warmups and template customization, making it a decent fit for international teams with aggressive outreach goals.
While features like multi-language support and template customization sound useful, they’re cosmetic. B2B outreach depends on reputation, placement accuracy, and inbox quality, not how many languages your warm-up emails are written in.
Warmy doesn’t publicly list pricing on its website but based on G2 insights:
Warmy also offers a 7-day free trial.
Note: Pricing is on the higher side compared to tools like MailReach or Warmup Inbox.
Lemwarm is Lemlist’s built-in warmup tool that connects to 10,000+ real inboxes to simulate human-like interactions and build sender reputation. It's best suited for users already sending cold outreach via Lemlist and want warmup, diagnostics, and optimization in the same ecosystem. The Smart Plan adds personalization options and campaign-level feedback.
For warming a large number of inboxes, Lemwarm can get pricey (10 inboxes on Smart would be $490/month). Lemlist/Lemwarm occasionally offers bundle deals for agencies.
If you’re replacing the Apollo warmup feature, your choice depends on how many inboxes you manage and how seriously you take deliverability.
If all you need is a basic warmup, there are plenty of tools that check that box. But if your cold emails are landing in spam, or you’re scaling across teams, clients, or domains, you need more than volume control. You need inbox-level visibility, reputation repair, and a system that builds real trust with Gmail and Outlook.
MailReach is the tool that offers all of that, plus real engagement simulation, domain health monitoring, and spam recovery.
Every email in spam equals to a lost potential customer. Start improving your inbox placement today with MailReach spam testing and warmup.
Following the rules isn’t enough—know where your emails land and what’s holding them back. Check your spam score with our free test, and improve deliverability with MailReach warmup.
Without the right warmup, your best campaigns are of no use. You can start by first testing your inbox placement and begin improving it today.
5 Apollo Email Warmup Alternatives in 2025 (Since Apollo Dropped Theirs)
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