Lemwarm
Lemwarm is a SaaS email warm-up and deliverability tool that automates sender reputation building across a 20,000+ domain network, serving B2B outbound sales teams, agencies, and growth marketers running cold email campaigns. Operated by LEMPIRE SAS, Paris.
- Company typePrivate
- Founded-
- HeadquartersParis, France
- Headcount11–50
- GTM typeB2B
- OfferingSoftware
What Lemwarm does
Lemwarm is a SaaS email warm-up and deliverability tool that automates inbox reputation building for B2B outbound senders. The product connects to user mailboxes over IMAP and exchanges human-style threaded email with a network of 20,000+ domains across 100+ countries, gradually increasing sending volume and providing real-time deliverability scoring alongside DNS authentication checks (SPF, DKIM, DMARC, MX). Onboarding progressively adjusts daily warm-up volume, and the platform claims 10,000+ teams as customers.
The product is offered in two monthly tiers and a custom plan: Essential at $29/month or $24/month annual per email; Smart at $49/month or $40/month annual per email, adding industry-tailored warm-up, pre-testing of up to five templates with automatic pausing on spam risk, and custom alerts; and a Custom plan for teams of 10+ users. No AI text generation is used; warm-up emails rely on real-life templates written by humans. Core technical components include IMAP-based warm-up orchestration, sender reputation and spam-trigger phrase detection, and DNS posture validation.
Lemwarm is operated by LEMPIRE SAS, a Paris-based private company that also owns the lemlist outbound platform. Lemwarm is bundled free with every lemlist subscription (Email Pro includes three warm inboxes, Multichannel Expert includes five), creating a hybrid go-to-market: pure self-serve PLG for individual senders and SMBs, sales-assisted for larger teams, and cross-sell from the larger lemlist user base. The service is GDPR-compliant and hosted on OVH infrastructure in Roubaix, France, with named customers across the agency and sales-tech segment including frontBrick, SalesCaptain, and RightMarket.
Lemwarm firmographics
Firmographics- Name
- Lemwarm
- Legal name
- LEMPIRE SAS
- Website
- https://lemwarm.com
- Company type
- Private
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- Lemwarm is a SaaS email warm-up and deliverability tool that automates sender reputation building across a 20,000+ domain network, serving B2B outbound sales teams, agencies, and growth marketers running cold email campaigns. Operated by LEMPIRE SAS, Paris.
- Ownership category
- akta.pro rank
Lemwarm industry classification
Industry- Product category
- Email Deliverability Software
- NAICS
- Other Computer Related Services (541519)
- SIC
- Services-Prepackaged Software (7372)
- akta.pro primary industry
- Email Authentication & Domain Protection (DMARC/SPF/DKIM) (HDADAKAC)
- akta.pro secondary industry
- Online Reputation Management (ORM) (MPAAAOAB)
Keywords
Where Lemwarm is headquartered
LocationHeadquarters
- HQ city
- Paris
- HQ country
- France
- HQ region
- Europe
Offices2 records
Markets served
Lemwarm business model
Business model- GTM type
- B2B
- Offering type
- Software
- Cost components
- Technology or R&D, Infrastructure, Personnel, Marketing or Sales, Operations
Revenue model
- Subscription - Per Email/Month: Monthly or annual subscription billed per email per month. Two tiers: Essential ($29 monthly / $24 yearly) and Smart ($49 monthly / $40 yearly). Volume pricing available for teams with 10+ users via custom quote. Annual billing saves 20%, quarterly saves 10%.
- Bundled with lemlist: Lemwarm is included free with every lemlist plan (all-in-one outreach platform for email, LinkedIn, calls, SMS). lemlist plans include Email Pro (3 warm inboxes) and Multichannel Expert (5 warm inboxes). This serves as a value-add and retention mechanism.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Subscription | Monthly | Essential Plan - $29/month (monthly) or $24/month (yearly) |
| Subscription | Monthly | Smart Plan - $49/month (monthly) or $40/month (yearly) |
| Subscription | Annual | Custom/Enterprise - Volume pricing for teams 10+ users |
Go-to-market motion2 records
Distribution channels4 records
Marketing channels8 records
Lemwarm product offering
Product offeringCore offering
Lemwarm is an email warm-up and deliverability SaaS tool that automates the gradual increase of sending volume across a network of 20,000+ real email domains in 100+ countries to build sender reputation, monitors deliverability scores and blacklist status, and runs DNS setup checks (SPF, DKIM, DMARC, MX) so that sales and marketing emails land in the primary inbox rather than spam. The Smart tier extends the product with industry-tailored warm-up content and the ability to pre-test up to 5 real campaign templates with automatic pausing of risky templates before launch.
Product overview
Lemwarm is a single-purpose email deliverability SaaS tool offered in three self-service tiers — Essential, Smart, and Custom — plus as a free bundle within Lemlist's all-in-one outreach platform. The core Lemwarm product warms email inboxes by exchanging automated human-like emails with a network of 20,000+ healthy domains, monitors deliverability scores, and performs DNS setup checks (SPF/DKIM/DMARC/MX). The Smart tier adds personalized warm-up content tailored to the user's industry and the ability to pre-test up to 5 real campaign email templates before launch. Lemlist is a separate multichannel outreach platform (email, LinkedIn, calls, SMS) that bundles Lemwarm free on all its plans, integrating deliverability monitoring directly into the outbound sales workflow.
Differentiator
Problem solved
Functional benefit
Products and services
- Lemwarm Email Warm-Up and Deliverability Booster An email warm-up and deliverability SaaS product that automates the gradual increase of sending volume across a network of 20,000+ real email domains in 100+ countries to build sender reputation with Gmail and Outlook, monitors deliverability scores and blacklist status, and runs DNS setup checks (SPF, DKIM, DMARC, MX) and content tips so cold email campaigns land in the primary inbox rather than spam. Targeted at sales teams, outbound marketers, agencies, solo senders, and enterprise teams of 10+ users.
Quantifiable outcome
- Up to 99% deliverability score achievable
- +6 more outcomes
Companies that use Lemwarm
Customer profileNamed customers8 records
Segments4 records
Ideal customer profiles4 records
Lemwarm technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Integration5 records
AI capability1 record
Feature5 records
Lemwarm partnerships and signals
Strategic signalPartnerships
One partnership is on record.
- lemlist (lempire SAS)coreLemwarm is developed and operated by lempire SAS, the parent company behind lemlist. Lemwarm is bundled free with all lemlist plans, creating a unified product ecosystem where lemlist provides the outreach automation and lemwarm handles deliverability. The products share the same team, infrastructure (hosted on OVH servers in France), and customer support ([email protected]). Lemwarm was built by an outbound team running real campaigns at scale.
Scale indicators4 records
Recent moves4 records
Expansion highlights4 records
Lemwarm competitors and assessment
Company assessmentDirect peers
- Mailreach: Mailreach is a direct email warm-up and deliverability tool focused on cold outreach senders, offering a network-based warm-up product comparable to Lemwarm's core offering with similar pricing tiers.
- Folderly: Folderly provides email deliverability monitoring, spam testing, and warm-up functionality, positioning itself as a more enterprise-focused alternative to Lemwarm with similar DNS, content, and placement testing capabilities.
- Warmbox: Warmbox is a direct email warm-up competitor offering automated warm-up across a network of inboxes with deliverability monitoring. It targets the same sales/outbound marketer and agency customer base as Lemwarm with very similar core functionality.
- Instantly.ai: Instantly.ai is an all-in-one cold email outreach platform with built-in warm-up functionality. It bundles warm-up into its core platform, competing with Lemwarm's standalone offering while also pressuring Lemwarm's bundling strategy.
- Warmy: Warmy is a direct email warm-up SaaS competitor with AI-driven warm-up templates and deliverability testing, competing head-to-head with Lemwarm for SMB and agency outbound customers.
- Smartlead: Smartlead is a cold email outreach platform with built-in email warm-up and deliverability tools, targeting agencies and high-volume senders. Its bundled warm-up directly competes with Lemwarm's paid tiers.
Emerging players
- GlockApps: GlockApps offers email deliverability testing, spam placement analysis, and DMARC monitoring. It overlaps with Lemwarm's deliverability scoring and monitoring features while emphasizing testing rather than warm-up.
- Mail-tester: Mail-tester provides spam score testing for individual emails, complementary to Lemwarm's continuous deliverability monitoring. It addresses a related but narrower use case around content/spam-trigger diagnostics.
- ZeroBounce: ZeroBounce is an email validation and deliverability platform. While its primary focus is list verification rather than warm-up, it addresses an adjacent deliverability pain point that Lemwarm customers also face.
Broad incumbents
- lemlist: lemlist is the parent platform operated by the same company (lempire SAS) and bundles Lemwarm free on all plans. It serves as Lemwarm's primary distribution channel and represents the broader multichannel outreach category Lemwarm sits within.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat4 records
Key risks6 records
Key highlights7 records
Customer concentration
Lemwarm social profiles
Digital presenceLemwarm compliance and trust
Trust signalCompliance1 record
Lemwarm financial estimates
Financial estimateRevenue estimate
Valuation estimate
Lemwarm leadership team
Management profileNumber of profiles
Profiles1 record
Lemwarm funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Lemwarm M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Lemwarm
What does Lemwarm do?
Lemwarm is an email warm-up and deliverability SaaS tool that automates the gradual increase of sending volume across a network of 20,000+ real email domains in 100+ countries to build sender reputation, monitors deliverability scores and blacklist status, and runs DNS setup checks (SPF, DKIM, DMARC, MX) so that sales and marketing emails land in the primary inbox rather than spam. The Smart tier extends the product with industry-tailored warm-up content and the ability to pre-test up to 5 real campaign templates with automatic pausing of risky templates before launch.
Is Lemwarm a public or private company?
Lemwarm is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was Lemwarm founded?
Lemwarm was founded in -1. It employs 11 to 50 people.
Where is Lemwarm based?
Lemwarm is headquartered in Paris, France, in the Europe region.
How does Lemwarm make money?
Two revenue lines are on record. Subscription - Per Email/Month is the primary driver. The others are bundled with lemlist.
Who are Lemwarm's main competitors?
Direct peers on record are Mailreach, Folderly, Warmbox, Instantly.ai, Warmy and Smartlead. Emerging players are GlockApps, Mail-tester and ZeroBounce. lemlist is listed as a broad incumbent.
Does Lemwarm have an API?
No public API is recorded for Lemwarm.
What industry is Lemwarm in?
Lemwarm's product category is Email Deliverability Software. Its primary akta.pro industry code is HDADAKAC, Email Authentication & Domain Protection (DMARC/SPF/DKIM), with a secondary code of MPAAAOAB, Online Reputation Management (ORM). Its NAICS code is 541519 and its SIC code is 7372.