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Mailivery vs Warmy: Email Platforms Compared (2026)

By the Warmy deliverability team Updated

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real warmup mailboxes
1M+
real warmup mailboxes
US seed accounts
500K+
US seed accounts
per month, billed monthly
$49
per month, billed monthly
human support
24/7
human support

Warmy brings Adeline AI, personalized warm-up, real link clicks, inbox placement testing, verification and reputation monitoring together in one all-in-one deliverability platform.

Mailivery is a mailbox warm-up and deliverability toolkit that combines peer-to-peer activity with inbox-placement testing, verification, and blacklist monitoring. Its commercial unit is shared daily warm-up capacity rather than a separate subscription for every connected inbox.

Key takeaways

Mailivery vs Warmy at a glance

What Mailivery does
Mailivery is a mailbox warm-up and deliverability toolkit that combines peer-to-peer activity with inbox-placement testing, verification, and blacklist monitoring. Its commercial unit is shared daily warm-up capacity rather than a separate subscription for every connected inbox.
Best-fit workflow
Outbound agencies, mailbox operators, and outreach platforms that need many connected senders under one volume allowance.
Mailivery pricing
Published monthly plans are USD $29, $79, and $199 per subscription; unlimited mailboxes share each plan’s daily capacity.
Warmy pricing
Plans starting from $49 / month. Seven-day trial, no credit card required.
Key strength
Unlimited mailbox connections suit large sender fleets with moderate aggregate traffic.
Important trade-off
Daily warm-up volume remains shared and capped despite unlimited connections.

Good to knowWarmy goes beyond a single email tool: Adeline AI, warm-up, testing, monitoring and verification work together to improve your deliverability.

Warmy vs Mailivery, Side by Side

Warmy brings ongoing optimization, actionable intelligence and deliverability measurement into one platform. See how that broader coverage compares with the specialist capabilities below.

Primary focus
WarmyAll-in-one, self-serve email deliverability infrastructure
MailiveryMailivery is a mailbox warm-up and deliverability toolkit that combines peer-to-peer activity with inbox-placement testing, verification, and blacklist monitoring. Its commercial unit is shared daily warm-up capacity rather than a separate subscription for every connected inbox.
Best-fit audience
WarmyTeams improving and measuring sender reputation across their existing sending stack.
MailiveryOutbound agencies, mailbox operators, and outreach platforms that need many connected senders under one volume allowance.
Unlimited connections
WarmyKlaviyo, Mailchimp, HubSpot, SendGrid, ActiveCampaign, Google Workspace, Microsoft 365, and SMTP
MailiveryEvery paid plan allows unlimited connected mailboxes; the shared daily warm-up allowance, rather than mailbox count, constrains usage.
Shared volume
WarmyWarmy focuses on reputation, placement testing and monitoring; this specialist capability is not presented as an equivalent Warmy feature.
MailiveryThe current plan update lists daily shared allowances of 200, 800, and 2,500 warm-up emails for Starter, Professional, and Business respectively.
Peer-to-peer activity
WarmyWarmy focuses on reputation, placement testing and monitoring; this specialist capability is not presented as an equivalent Warmy feature.
MailiveryMailivery describes warm-up interactions between customer mailboxes and real business accounts rather than only a closed collection of synthetic accounts.
Pool maintenance
WarmyAdeline AI co-pilot and AI template optimizer
MailiveryThe product page says participating inboxes are verified daily and invalid or inactive addresses are removed from the warm-up network.
Content maintenance
WarmyAdeline AI co-pilot and AI template optimizer
MailiveryThe vendor monitors and rotates warm-up templates and removes underperforming content from circulation.
Network screening
WarmyWarmy focuses on reputation, placement testing and monitoring; this specialist capability is not presented as an equivalent Warmy feature.
MailiveryMailivery says accounts showing spam behavior or reputation problems are removed from the network.
Placement tests
WarmyIncluded: 5–50 tests/month by tier, with automated testing
MailiveryInbox-placement credits test delivery across Google, Microsoft, Yahoo, and other providers, with different credit allocations by plan.
Blacklist monitoring
WarmyDomain/IP reputation tracking, blacklist alerts, spam-placement reports
MailiveryThe pricing matrix includes domain and IP blacklist monitoring; monitoring allocations rise with the subscription tier.
Verification
WarmyBuilt-in
MailiveryEmail-verification credits are included in the deliverability bundle rather than presented solely as an unrelated standalone product.
Sending controls
WarmyWarmy focuses on reputation, placement testing and monitoring; this specialist capability is not presented as an equivalent Warmy feature.
MailiveryThe pricing matrix describes email scheduling, balancing, gradual ramp-up, and configurable response rates.
Mailbox connectivity
WarmyAdeline AI co-pilot and AI template optimizer
MailiveryThe pricing material lists Gmail, GSuite, and SMTP connections, making an existing sending mailbox the setup prerequisite.
REST API
WarmyDocumented API included on every plan
MailiveryThe warm-up product page advertises a full REST API for integrating Mailivery with other software.
Response limits
WarmyWarmy focuses on reputation, placement testing and monitoring; this specialist capability is not presented as an equivalent Warmy feature.
MailiveryThe pricing page lists maximum response rates of 30% for Starter and 55% for Professional; unlimited connections do not remove engagement-setting limits.
Recovery analytics
WarmyWarmy focuses on reputation, placement testing and monitoring; this specialist capability is not presented as an equivalent Warmy feature.
MailiveryThe pricing page describes a dashboard showing how many messages were recovered from spam.
Pricing and billing
WarmyFrom $49/month, billed monthly
MailiveryPublished monthly plans are USD $29, $79, and $199 per subscription; unlimited mailboxes share each plan’s daily capacity. Subscription by aggregate daily warm-up volume
Trial and free access
WarmySeven days, no credit card required
MailiverySeven-day free trial advertised on pricing page.

The detailed analysis

Where Warmy Adds Value Beyond Mailivery

Outbound agencies, mailbox operators, and outreach platforms that need many connected senders under one volume allowance.

01

Capacity rather than seat count

Every paid plan allows unlimited connected mailboxes; the shared daily warm-up allowance, rather than mailbox count, constrains usage. The current plan update lists daily shared allowances of 200, 800, and 2,500 warm-up emails for Starter, Professional, and Business respectively. These are the published capacity rather than seat count elements relevant to evaluating mailivery's role in a deliverability stack. Pricing 2026 plan change

An agency should size this subscription from the combined warm-up demand of its client mailboxes, not merely how many accounts it can connect. Unlimited connections can simplify fleet administration, but the published shared-volume allowance still has to be divided among active senders; it is not unlimited warm-up traffic.

02

Network composition and hygiene

Mailivery describes warm-up interactions between customer mailboxes and real business accounts rather than only a closed collection of synthetic accounts. The product page says participating inboxes are verified daily and invalid or inactive addresses are removed from the warm-up network. These are the published network composition and hygiene elements relevant to evaluating mailivery's role in a deliverability stack. Warm-up product

Daily validation and removal of unhealthy participants are more concrete evaluation points than the headline network-size claims. For a procurement review, ask how these controls are enforced and whether logs can demonstrate the activity received by a particular mailbox; the product page is a vendor description, not an independent audit of pool quality.

03

Warm-up traffic quality

The vendor monitors and rotates warm-up templates and removes underperforming content from circulation. Mailivery says accounts showing spam behavior or reputation problems are removed from the network. These are the published warm-up traffic quality elements relevant to evaluating mailivery's role in a deliverability stack. Warm-up product

Template rotation and account screening address two different sources of repetitive or undesirable warm-up activity. They do not establish that a production campaign will reach its audience, so a useful pilot would evaluate the actual mailboxes and campaign content alongside the managed interaction stream rather than rely on network claims alone.

04

Diagnostics alongside activity

Inbox-placement credits test delivery across Google, Microsoft, Yahoo, and other providers, with different credit allocations by plan. The pricing matrix includes domain and IP blacklist monitoring; monitoring allocations rise with the subscription tier. These are the published diagnostics alongside activity elements relevant to evaluating mailivery's role in a deliverability stack. Pricing

Placement tests and blacklist monitors make Mailivery broader than an engagement-only utility. Buyers should distinguish a placement-test credit from a mailbox warming allowance and a monitor allocation: these are separate consumption dimensions, so a fleet can have sufficient warm-up traffic yet require more diagnostic capacity.

05

Prevention and configuration

Email-verification credits are included in the deliverability bundle rather than presented solely as an unrelated standalone product. The pricing matrix describes email scheduling, balancing, gradual ramp-up, and configurable response rates. These are the published prevention and configuration elements relevant to evaluating mailivery's role in a deliverability stack. Pricing

Verification helps inspect recipient data, while scheduling and ramp controls shape sender behavior; they should not be treated as interchangeable deliverability remedies. Teams can use these bundled functions together, but should check the current verification allowance and desired reply-rate ceiling before assuming the entry plan covers their operational process.

06

Platform and reporting integration

The pricing material lists Gmail, GSuite, and SMTP connections, making an existing sending mailbox the setup prerequisite. The warm-up product page advertises a full REST API for integrating Mailivery with other software. These are the published platform and reporting integration elements relevant to evaluating mailivery's role in a deliverability stack. Pricing Warm-up product

SMTP connectivity and the advertised REST API are relevant to agencies that do not want to manage every mailbox manually. The public material establishes integration intent, but endpoint coverage, authentication details, rate limits, and support commitments should be confirmed in the actual API documentation before committing an automated provisioning workflow.

The Warmy advantage

One Platform. Your Entire Deliverability Workflow.

From Adeline’s next-step guidance to real engagement and provider-level measurement, Warmy connects the work that separate email tools leave to your team.

Adeline AI deliverability expert

Adeline connects authentication, DNS, inbox placement, blocklists, content, engagement and provider signals into one picture. She builds personalized deliverability plans, detects spam risk and explains what to change next.

AI-powered email warm-up

Personalized timing, volume and pacing, with gradual ramp-up and engagement that includes opens, replies, important markings and moving messages out of spam.

Real link clicks

Warmy’s engagement includes real clicks on your links, alongside opens and other natural mailbox interactions.

1M+ real mailbox network

1M+ real, protected Google Workspace, Microsoft 365, and B2C mailboxes

500,000+ US seed accounts

500,000+ real US seed accounts, desktop and mobile; rotated monthly; speeds up warmup

Inbox placement and automated tests

Included: 5–50 tests/month by tier, with automated testing. Provider-level results distinguish inbox, Promotions and spam, so you can measure progress instead of relying on SMTP acceptance alone.

Reputation and blacklist monitoring

Domain/IP reputation tracking, blacklist alerts, spam-placement reports

SPF, DKIM and DMARC

SPF, DKIM, and DMARC tracking, record checks, and DMARC report analysis

Google Postmaster integration

Direct Google Postmaster integration

Built-in email verification

Check address validity as part of the wider deliverability workflow, alongside reputation work, placement testing and monitoring.

AI content optimization

AI template optimization, custom warm-up topics and templates, and conversations in 30+ languages.

Multiple mailboxes and domains

Multiple mailboxes and domains; 100 to 5,000 warmup emails/day by plan. Auto-archive keeps warm-up conversations out of your working inbox.

Your existing sending stack

Klaviyo, Mailchimp, HubSpot, SendGrid, ActiveCampaign, Google Workspace, Microsoft 365, and SMTP. Self-serve setup in minutes via OAuth or SMTP/IMAP.

API and expert support

Documented API included on every plan. 24/7 human support; dedicated CSM and deliverability consultant on Expert/Platinum.

Allowances and dedicated support vary by plan. Plans starting from $49 / month.

Plans and total cost

Warmy vs Mailivery Pricing

Warmy and Mailivery pricing compared
Pricing detailWarmyMailivery
Starting price$49/ monthPublished monthly plans are USD $29, $79, and $199 per subscription; unlimited mailboxes share each plan’s daily capacity.
BillingMonthlySubscription by aggregate daily warm-up volume
Free trialSeven days, no credit card requiredSeven-day free trial advertised on pricing page.
Also includedAdeline AI, warm-up, placement tests, monitoring, verification and API access; allowances vary by plan.See the individual features and published plan allowances below.

Plans starting from $49 / month. See Warmy’s five plans

Mailivery: published plans and allowances

Starter
USD 29subscription/month · monthly
200 warm-up emails/day shared
Professional
USD 79subscription/month · monthly
800 warm-up emails/day shared
Business
USD 199subscription/month · monthly
2,500 warm-up emails/day shared

A mailbox subscription, an address-verification credit, a rendering test and an SMTP sending allowance buy different outcomes. Compare total cost using your own mailbox count, list size, testing frequency and sending volume; do not equate a lower unit price with equivalent coverage.

Social proof

What Senders Are Saying about Warmy

Rated 4.9/5 on G2 and trusted by 35,000+ businesses.

TESTIMONIALS

Loved by senders who live in the inbox

★★★★★5.0
“Warmy has been a game changer for us. The platform pays for itself many times over.”
Darren Prine
Co-founder and CRO, Cloud Tech Gurus
★★★★★5.0
“If you do cold email, Warmy will increase your efficiency, improve your deliverability, and cut your costs.”
Thomas TzouridisThomas Tzouridis
CEO, ActiScale
★★★★★5.0
“I've purchased many marketing tools before. Often, once you buy, you're on your own. With Warmy, they care about you.”
Gábor Majer
Founder, Nord Sales Company

The verdict

Why Choose Warmy for Complete Deliverability

Which tool to choose for each need
If you want…Choose
Everything in one platformWarm-up, placement tests, verification, authentication and reputation monitoring in one connected workflow.Warmy
Adeline AI expertisePersonalized plans, predictive spam-risk detection and clear next steps from your AI deliverability expert.Warmy
Real engagement and seed accountsA 1M+ mailbox network, real link clicks and 500,000+ US seed accounts.Warmy
Expert help and an easy startSelf-serve setup, API access and 24/7 human support; dedicated consultant options on higher tiers.Warmy
Allocate one daily warm-up budget across an agency’s connected client inboxes.Mailivery
Run placement tests and inspect blacklist signals before increasing live outreach.Mailivery
Evaluate API-driven warm-up operations for a mailbox or outreach platform.Mailivery

Mailivery: specialist capabilities

  • Unlimited mailbox connections suit large sender fleets with moderate aggregate traffic.
  • Placement tests, verification, and monitoring are bundled with warm-up.
  • Network validation and template rotation are explicitly described operational controls.

Trade-offs to evaluate

  • Daily warm-up volume remains shared and capped despite unlimited connections.
  • Monitoring and test-credit allocations vary by tier, so connection count alone is an incomplete cost model.
  • Advertised inbox and bounce outcomes are vendor claims, not guarantees for a particular campaign.

A practical evaluation

Using Warmy Alongside Mailivery

  1. 1

    Define the job for Mailivery

    Allocate one daily warm-up budget across an agency’s connected client inboxes. Keep that objective separate from your sender-reputation and placement baseline.

  2. 2

    Establish a placement baseline

    Test a representative message with a consistent provider mix. Record authentication, inbox and spam placement before changing the sending workflow.

  3. 3

    Evaluate Mailivery against its output

    An agency should size this subscription from the combined warm-up demand of its client mailboxes, not merely how many accounts it can connect. Unlimited connections can simplify fleet administration, but the published shared-volume allowance still has to be divided among active senders; it is not unlimited warm-up traffic.

  4. 4

    Coordinate complementary work

    Daily warm-up volume remains shared and capped despite unlimited connections. Keep specialist tooling where it serves a separate job. Coordinate any overlapping warm-up schedules instead of doubling engagement volume.

  5. 5

    Review before scaling

    Compare provider-level placement alongside specialist results, bounces and complaints. Address validity, rendering previews and SMTP acceptance alone do not prove inbox placement.

FAQ

Warmy vs Mailivery
FAQs

Mailivery is a mailbox warm-up and deliverability toolkit that combines peer-to-peer activity with inbox-placement testing, verification, and blacklist monitoring. Its commercial unit is shared daily warm-up capacity rather than a separate subscription for every connected inbox. Warmy focuses on sender reputation, inbox-placement testing and authentication monitoring alongside the existing sending stack.

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