

⚡ Quick Verdict:
- Prezzi: Maildoso starts at $100/mo for 32 mailboxes. Warmy uses custom pricing on all plans.
- Ideale per: Maildoso for e-mail fredda infrastructure at scale. Warmy for email warm up and inbox placement testing.
- Differenza fondamentale: Maildoso builds your sending infrastructure with unlimited inboxes. Warmy focuses only on the warm up process.
- Our pick: Maildoso for most cold email marketers — you get domain setup, mailboxes, and AI warm up in one tool.

E-mail fredda sensibilizzazione lives or dies by deliverability.
Maildoso vs Warmy both promise to keep your messages out of the spam folder.
Ma risolvono problemi molto diversi.
Maildoso builds the cold email infrastructure you send from.
Warmy warms up the email accounts you already have.
This guide breaks down which tool fits your Attività commerciale esigenze.
Panoramica
This comparison covers pricing, key features, and ease of use for both tools.
We also break down who each tool works best for.
Our sources include published specs, documentation, and user reviews.
Our writers also spent hands-on time with each platform.
By the end, you’ll know which tool fits your outreach campaigns.
Che cos'è Maildoso?
Maildoso is a cold email infrastructure provider built for sending high-volume outreach.
It automates domain setup, mailbox creation, and DNS records.
The platform handles SPF, DKIM, and DMARC configuration for you.
Maildoso uses a shared IP system with IP rotation for better deliverability.
You get a master inbox to manage replies from multiple email accounts.
Over 2,000 cold emailers use Maildoso for their sending infrastructure.

Maildoso
Cold email infrastructure for sending at scale. Automates domain setup, mailbox creation, and IP rotation.
Le migliori caratteristiche delle bolle
Here’s what Maildoso costs in 2026. The pricing structure is simple.
| Piano | Prezzo | Ideale per |
|---|---|---|
| 32 cassette postali | $ 100/mese | Solo cold emailers and small teams |
| 68 cassette postali | $ 166/mese | Agenzie che inviano grandi volumi |
| 400 cassette postali | $733/mese | Agencies running campaigns for clients |
Pricing verified April 2026.

Prova gratuita: No free trial available. You commit to a paid plan from day one.
Garanzia di rimborso: Maildoso requires a 3-month upfront payment, which some users find restrictive.
📌 Nota: Maildoso pricing small package (32 mailboxes) starts at $100/month, which is low-cost compared to Google Workspace or Microsoft 365 for the same number of inboxes.
⚠️ Avvertimento: The 3-month upfront commitment can be tight on budget. Plan your outreach campaigns before signing up.
Ecco perché chi invia email a freddo sceglie Maildoso:
Here’s what makes Maildoso worth considering:
- I record DNS (SPF, DKIM, DMARC) vengono configurati automaticamente. Non sono richieste competenze tecniche. Maildoso handles DNS records, SPF, DKIM, and domain forwarding for you. No technical setup headaches.
- Posta in arrivo principale: Manage replies from multiple email accounts in one place. You see all conversation history together.
- Rotazione IP: Maildoso rotates IP addresses across users to improve deliverability. This avoids spam filter triggers.
- Il motore AI di Adeline adatta la tua strategia di riscaldamento in tempo reale. Simula interazioni simili a quelle umane per costruire in modo naturale la reputazione del mittente. Built-in warm up emails help establish sender reputation. The AI gradually increases sending volume.
- Gestione di domini in blocco: Manage multiple domains from one dashboard. Perfect for cold email marketers running large outreach campaigns.
- Si integra direttamente con Adobe Premiere e Canva. Puoi creare voci fuori campo senza interrompere il tuo flusso di lavoro di editing. Si collega con Immediatamente, Smartlead, and other email providers via API access. Plug into your existing stack.

What Our Team Noticed
Nostro scrittore signed up for Maildoso and spent several days setting up domains and mailboxes. Here’s what stood out:

Il costo per casella postale più basso sul mercato.
✅ Pro
- Automates domain setup and mailbox creation, saving hours of technical work
- Master inbox simplifies reply management across multiple email accounts
- Low-cost pricing structure starting at $100 for 32 mailboxes
- Integrates with Instantly, Smartlead, and other cold email tools
❌ Contro
- Requires 3-month upfront payment with no monthly billing option
- Shared IP system can lead to inconsistent deliverability from other users
- Customer support response times have been reported as slow
Che cos'è Warmy?
Warmy is an email deliverability tool focused on warming up email accounts.
It uses AI to send and receive warm up emails on your behalf.
The platform helps build sender reputation gradually over time.
Warmy works with Google Workspace, Outlook, and most email providers.
The art automatic warm up runs in the background while you focus on email marketing.
Warmy reviews on Trustpilot rate it 4.6/5 from email marketing users.

Caldo
AI email warm up tool for higher inbox placement. Builds sender reputation through automated interactions.
Questo ti aiuta a monitorare con precisione l'andamento del riscaldamento del tuo dominio con Gmail.
Here’s what Warmy costs in 2026. The pricing is custom-quoted.
| Piano | Prezzo | Ideale per |
|---|---|---|
| Warmy è uno strumento di riscaldamento e deliverability delle email basato sull'intelligenza artificiale che aiuta le aziende a migliorare la reputazione del mittente e i tassi di recapito nella casella di posta. | Vidyard è la migliore piattaforma video per i team di vendita che vogliono concludere più affari. Ho inviato oltre 500 video personalizzati in 90 giorni. Il mio tasso di risposta è aumentato del 38%. Il piano gratuito è valido. Ma il vero potenziale si ottiene con il piano da 59 dollari al mese per utente. | Cold email outreach to businesses |
| Squadre e agenzie video che necessitano di un elevato volume | Vidyard è la migliore piattaforma video per i team di vendita che vogliono concludere più affari. Ho inviato oltre 500 video personalizzati in 90 giorni. Il mio tasso di risposta è aumentato del 38%. Il piano gratuito è valido. Ma il vero potenziale si ottiene con il piano da 59 dollari al mese per utente. | Email marketing to consumers |
| Piano personalizzato | Vidyard è la migliore piattaforma video per i team di vendita che vogliono concludere più affari. Ho inviato oltre 500 video personalizzati in 90 giorni. Il mio tasso di risposta è aumentato del 38%. Il piano gratuito è valido. Ma il vero potenziale si ottiene con il piano da 59 dollari al mese per utente. | Enterprise teams with high volume needs |
Pricing verified April 2026.

Prova gratuita: Yes, Warmy offers a 7-day free trial without requiring a credit card upfront.
Garanzia di rimborso: Custom plan terms apply. Contact sales for refund details.
📌 Nota: The starter plan tier is suitable for smaller companies, while higher tiers fit business needs at scale. Plans differ mainly in the number of warm up emails sent daily.
⚠️ Avvertimento: Warmy is not the cheapest deliverability tool. Smaller teams may find the cost steep without high-volume email campaigns.
Ecco perché Warmy si distingue come soluzione specifica per il riscaldamento:
Here’s what makes Warmy worth considering:
- AI-Driven Warm Up Process: Adeline AI manages email warm up patterns automatically. The system mimics human behavior to build trust.
- Inbox Placement Test: Run free tools to check if your messages land in primary inbox or spam folder. Get insights before you send.
- Supporto multilingue: Warm up emails in over 30 languages. Useful for teams running international email campaigns.
- Analizza il contenuto delle tue email per individuare potenziali elementi antispam e problemi di formattazione prima di ogni campagna. Test your email content for spam triggers before sending. Catch problems Presto in your outreach emails.
- Integrazione con Google Postmaster: Track domain reputation and bounce rates directly. Spot deliverability issues fast.
- Consente di creare e convalidare record DNS SPF, DKIM e DMARC senza alcuna conoscenza tecnica. Generatore: Generate proper DNS records for your sending domains. Prevents authentication failures.

What Our Team Noticed
Our writer connected Warmy to a test mailbox and ran the warm up process for several days. Here’s what stood out:

Particolare attenzione alla capacità di consegna.
✅ Pro
- AI warm up engine improves inbox placement and sender reputation
- Free tools include deliverability test and template checker
- Supports warm up in over 30 languages for global teams
- Strong Trustpilot rating of 4.6/5 from real customers
❌ Contro
- Custom pricing means you can’t compare costs upfront
- Has a learning curve for first-time deliverability tool users
- Not an overnight fix — results take time to show
Confronto delle funzionalità
Ready to dive into a detailed comparison of Maildoso vs Warmy? We’ll explore the core features that separate these two tools. The goal is helping you pick the right tool for your sales process.
| Caratteristica | Maildoso | Caldo |
|---|---|---|
| Prezzo di partenza | 100 dollari al mese (32 caselle di posta) | Prezzi personalizzati |
| Prova gratuita | ❌ | ✅ (7 giorni) |
| Configurazione in 10 minuti per oltre 100 caselle di posta | ✅ | ❌ |
| Email Warm Up | ✅ (built-in AI) | ✅ (core focus) |
| Posta in arrivo principale | ✅ | ❌ |
| ❌ (richiede integrazione) Automazione | ✅ | Partial (SPF only) |
| Configurazione automatica DNS | ✅ (shared IPs) | ❌ |
| ✅ (+69 $/mese) | ❌ | ✅ |
| Accesso API | ✅ | ✅ |
| Ideale per | Infrastruttura di email fredde | Email deliverability boost |
1. Cold Email Infrastructure
Maildoso: Maildoso is a full cold email infrastructure provider. It handles domain setup, mailbox creation, and DNS records like SPF and DKIM. You can set up unlimited inboxes across multiple domains in one dashboard.

Caldo: Warmy doesn’t provide email infrastructure. You bring your own email accounts from Google Workspace or other email providers. Warmy connects to existing inboxes and warms them up.
2. Email Warm Up Process
Maildoso: Built-in AI warm up runs automatically on every mailbox you create. The system gradually increases sending volume to build sender reputation. The AI warm up feature can range from $160 to $2000 per month depending on scale.

Caldo: The warm up process is Warmy’s main product. Adeline AI sends warm up emails, opens them, and replies to mimic real conversations. Warmy works to keep messages out of the spam folder and into the primary inbox.

3. Master Inbox & Reply Management
Maildoso: The master inbox pulls replies from all your email accounts into one feed. You see complete conversation history per contact across multiple email accounts. This saves you from logging into each inbox separately.

Caldo: Warmy has no master inbox feature. You manage replies inside your favorite email client like Gmail or Outlook. The tool focuses purely on deliverability, not reply tracking.
4. Domain Setup & DNS Records
Maildoso: Domain setup is fully automated. Maildoso configures SPF, DKIM, DMARC, and MX records for you. You can manage one domain or five domains from a single dashboard. The setup avoids common technical setup errors.

Caldo: Warmy provides an SPF record generator and basic DNS setup checks. It doesn’t create domains or mailboxes for you. You handle DNS records on your own domains.

5. IP Address & Deliverability Optimization
Maildoso: Maildoso uses shared IPs with IP rotation across users. The pool gives you better deliverability than a single static IP. However, shared IPs mean other users on the same IP can affect your sender reputation.
Caldo: Warmy doesn’t manage IP addresses since you bring your own email infrastructure. The deliverability optimization comes from warming up your existing setup. You don’t get a dedicated IP or shared IP pool here.
⚠️ Avvertimento: Maildoso uses a shared IP address system. If you need a dedicated IP address for sender reputation control, look at alternatives like Inframail or Infraforge.
La piattaforma non include test specifici per la consegna delle email nella casella di posta in arrivo. È possibile monitorare le aperture e le risposte alle email, ma non c'è modo di vedere esattamente dove vengono recapitate le email sui vari provider come Gmail, Outlook o Yahoo.
Maildoso: No built-in inbox placement test. Maildoso focuses on infrastructure and warm up, not pre-send testing. You’d need a separate tool to check spam folder placement before sending outreach emails.
Caldo: The deliverability test is one of Warmy’s strongest features. Send a test email and Warmy reports inbox placement across major email providers. You see exactly which inbox or spam folder receives your messages.

7. CRM & Tool Integrations
Maildoso: Incorporato CRM features for tracking contacts and conversation history. Maildoso integrates with Instantly, Smartlead, and other cold email tools. API access lets you connect custom workflows.

Caldo: Warmy connects to email providers via standard SMTP/IMAP. It integrates with Google Postmaster for reputation tracking. There’s no built-in CRM, since Warmy isn’t designed for managing outreach campaigns.
8. Template Quality Checker
Maildoso: No template checker tool. Maildoso assumes you write or use templates inside your sending platform like Instantly. The custom tracking domain feature helps with link reputation, though.

Caldo: The template checker scans your email content for spam triggers. It flags risky words, link counts, and image ratios. This helps you write outreach emails that actually reach the inbox.

9. Prezzi e costi
Let’s compare the pricing structure side by side.
| Piano | Maildoso | Caldo |
|---|---|---|
| Prova gratuita | ❌ | ✅ 7 giorni |
| Starter / Small | Il piano gratuito ti offre fino a 3 moduli. Sono sufficienti per la maggior parte dei siti web e delle landing page di base. | Contact sales (B2B Sender) |
| Livello intermedio | 733 dollari al mese (400 caselle postali) | Contact sales (B2C Sender) |
| Livello superiore | Il prezzo di Apollo è calcolato per utente al mese. Un team di 5 persone con l'abbonamento Professional costa 395 dollari al mese. I crediti scadono mensilmente, quindi quelli non utilizzati vengono persi. I crediti aggiuntivi costano 0,20 dollari ciascuno, con un acquisto minimo di 250 crediti. | Contact sales (Custom Plan) |
| Fatturazione | 3 mesi in anticipo | Custom terms |
Maildoso: Pricing is transparent and posted on the main site. The starter package gives you 32 mailboxes for $100/month. The 3-month upfront commitment is the trade-off for that low price.
Caldo: All plans use custom pricing. You contact sales for a quote based on your sending volume. The 7-day free trial helps you test before paying.
Diversi scenari
| Se hai bisogno | Scegliere | Perché |
|---|---|---|
| Cold email infrastructure from scratch | Maildoso | Domain setup, mailboxes, warm up in one tool |
| Boost existing inbox deliverability | Caldo | Best-in-class warm up engine |
| Run agency outreach at scale | Maildoso | 400 mailbox plan available |
| Free trial before committing | Caldo | 7-day trial, no credit card |
| test integrato | Caldo | Built-in deliverability test tool |
| Master inbox for replies | Maildoso | Unified reply management |
💰 Il tuo budget
Maildoso lists prices openly starting at $100/month. Warmy hides pricing behind a sales call, which makes budget planning harder for cold emailers.
🔌 Il tuo stack tecnologico
Maildoso plugs into Instantly and Smartlead through API access. Warmy connects to your existing email accounts via SMTP, no migration needed.
ActiveCampaign 15 $/mese contro Creatio 25 $/utente/mese —
Run high-volume cold email campaigns with Maildoso’s bulk inbox setup. Use Warmy if you send fewer emails but need higher inbox placement.
🎓 Il tuo livello di esperienza
Maildoso simplifies dns setup for beginners through full automation. Warmy has a learning curve, especially for first-time deliverability tool users.
🆓 Prove e demo gratuite
Warmy offers a 7-day free trial without requiring credit card. Maildoso has no free trial — you pay 3 months upfront from day one.
🛟 Opzioni di supporto
Warmy reviews praise responsive customer support. Maildoso has been reported to have slow response times for urgent issues.
Guida al passaggio
Utilizzate già uno di questi strumenti? Ecco cosa aspettarvi se passate a un altro.
🔄 Switching from Maildoso to Warmy?
✅ Cosa otterrai:
- Inbox placement testing across major email providers
- Email template checker to flag spam triggers before sending
- 7-day free trial to test the warm up process
❌ Cosa perderai:
- Master inbox for unified reply management
- Automated mailbox creation and domain forwarding
- IP rotation across shared IP pool
📋 Come effettuare il passaggio:
- Keep your Maildoso mailboxes active for sending
- Sign up for Warmy’s free trial and connect your inboxes
- Run deliverability tests and start the warm up sequence
🔄 Switching from Warmy to Maildoso?
✅ Cosa otterrai:
- Full email infrastructure with as many mailboxes as you need
- Master inbox to handle replies from multiple email accounts
- Transparent pricing structure starting at $100/month
❌ Cosa perderai:
- Inbox placement test tool
- Multi-language warm up support
- Free trial period — Maildoso requires upfront payment
📋 Come effettuare il passaggio:
- Sign up for Maildoso and choose your mailbox plan
- Let Maildoso configure your domains and DNS records automatically
- Cancel Warmy after the new Maildoso mailboxes finish warm up
What Our Review Didn’t Cover
This comparison focused on solo cold emailers and small-to-mid sales teams. We didn’t test enterprise plan tiers with custom SLAs or evaluate large agency pack deployments running thousands of mailboxes. Our observations are based on the April 2026 versions of both tools. If you’re sending over 100,000 emails per day, your priorities may differ from what we’ve covered here.
Verdetto finale
| Categoria | Vincitore |
|---|---|
| 💰 Trasparenza dei prezzi | Maildoso |
| 🚀 Cold Email Infrastructure | Maildoso |
| ⚡ Email Warm Up Quality | Caldo |
| 🎯 Inbox Placement Testing | Caldo |
| 👶 Facilità di configurazione | Maildoso |
| 🔌 Master Inbox & CRM | Maildoso |
| 🛟 Assistenza clienti | Caldo |
| 🏆 Vincitore assoluto | Maildoso |
🏆 VINCITORE: MAILDOSO
Maildoso wins 4 out of 7 categories.
Ideale per: Cold email marketers, sales teams scaling outreach, agencies running multiple client campaigns
Maildoso and Warmy are two very different products. Maildoso is a cold email infrastructure provider that handles your sending domains, mailboxes, and IP rotation. Warmy is a deliverability tool that warms up email accounts you already own.
Warmy is excellent for boosting existing sender reputation and avoiding the spam folder. The deliverability test tool and template checker provide real value. Smaller companies that already have email accounts often find Warmy a solid choice.
However, if you need full cold email infrastructure with unlimited inboxes, master inbox, and automated DNS setup, Maildoso is the better choice. Most cold email marketers need infrastructure first, then warm up — and Maildoso bundles both.
Ecco come Maildoso si posiziona rispetto agli altri concorrenti:
Here’s how Maildoso stacks up against other cold email infrastructure providers:
Maildoso vs Instantly
Elementi essenziali (annuali) Pure infrastructure focus, lower per-mailbox cost, dedicated bulk domain management
Vincite immediate su: Built-in cold email sending platform, larger lead database, more outreach automation features
Maildoso contro Smartlead
Elementi essenziali (annuali) Mailbox creation as core service, simpler setup for non-technical users, transparent pricing tiers
Smartlead vince su: Full sending platform with sequences, advanced sender reputation analytics, multichannel outreach
Infrastruttura di invio, rotazione IP Warmbox
Elementi essenziali (annuali) Provides actual mailboxes plus warm up, master inbox feature, agency-friendly 400-mailbox plan
Scoperta dell'argomento, analisi Allintitle Standalone warm up service for existing accounts, simpler pricing for solo users, faster setup
Infrastruttura di invio, rotazione IP Lemlist
Elementi essenziali (annuali) Email infrastructure provisioning, lower entry-level cost, master inbox across multiple mailboxes
Lemlist vince su: Full multichannel sequences, video personalization, broader sales engagement features
Ecco come Warmy si posiziona rispetto agli altri concorrenti:
Here’s how Warmy stacks up against other email warm up tools:
Warmy contro Warmbox
Collega tutti gli account di invio che desideri. L'assenza di prezzi per utente significa che i costi rimangono invariati anche con la crescita del tuo team. Multi-language support across 30+ languages, deliverability test tool, Adeline AI engine
Scoperta dell'argomento, analisi Allintitle Lower starting price for solo users, simpler dashboard, faster account setup
Assistenza clienti, test di consegna Mailshake
Collega tutti gli account di invio che desideri. L'assenza di prezzi per utente significa che i costi rimangono invariati anche con la crescita del tuo team. Pure deliverability focus, better warm up engine quality, free deliverability tools
Mailshake vince su: Full cold email sending platform, sales engagement features, transparent fixed pricing
Assistenza clienti, test di consegna Venditore pratico
Collega tutti gli account di invio che desideri. L'assenza di prezzi per utente significa che i costi rimangono invariati anche con la crescita del tuo team. Inbox placement testing, template checker, 30+ language warm up
Piano gratuito disponibile, giurisdizione svizzera, app più semplice Full cold outreach platform, sequence automation, lead finder built in
Warmy contro Klenty
Collega tutti gli account di invio che desideri. L'assenza di prezzi per utente significa che i costi rimangono invariati anche con la crescita del tuo team. Standalone warm up that works with any email client, Google Postmaster integration, deliverability-focused
Velocità dei contenuti, rilevamento tramite IA, oltre 100 lingue Sales engagement workflows, CRM integrations like Forza vendita, multichannel cadences
Domande frequenti
Che cos'è Maildoso?
Maildoso is a cold email infrastructure provider that lets you send emails at scale. It gives you unlimited email inboxes across three domains or five domains and handles the entire domain configuration, domain name setup, and email server provisioning for you. The platform reduces costs and saves time compared to manually buying domains, mailboxes on Google Workspaces or Microsoft Outlook, and a private IP address. Maildoso pricing starts at $100/month for the small package, with built-in domain rotation, automated warm up, and a private warmup pool — making it a true email warmup automation and email warmup service in one. The system also guarantees domain isolation so your client domains stay free of viruses and protected from cross-contamination, with a clean subdomain structure for each agency pack.
Is Maildoso good for beginners?
Yes, Maildoso is user friendly because it automates the parts that other cold emailers struggle with. You don’t have to manually configure SPF, DKIM, DMARC, or even the warmup process — the system handles email setup end-to-end. The monthly subscription is private to your account, with no shared IP risk, and the dashboard tracks open rate, reply rate, click rate, and deliverability rate so you can monitor metrics in real time. The starter package is cost effective for solo users, while the agency pack and enterprise plan give you more inboxes for lead generation at scale. There is no free trial, but the deliverability platform pays for itself quickly through better inbox placement.
Ne vale la pena?
Warmy is the warmup software behind Warmy.io — an AI-powered warm-up tool and deliverability checker that uses Adeline AI as its AI email assistente to run the warmup process. It helps your warm-up emails and outreach emails land in the primary inbox instead of the spam folder. Warmy email warm up uses real users and real inboxes that hold natural conversations through your account, building domain authority and improving sender reputation. Warmy features include a deliverability test, an email deliverability test, a spam folder test, an email seed list, an email seed network across providers, a template checker that scans every subject line and spam test, a spam score checker, blacklist removal alerts via a built-in blacklist monitor, Google Postmaster Tools integration, an email signature costruttore doubling as a signature generator, and a free SPF generator. Warmy integrations with major email platforms make it a strong choice for teams serious about deliverability.
Come funziona il riscaldamento via email?
Email warmup gradually increases sending volume from a new account so messages get delivered reliably. The tool sends warm-up emails to a network of inboxes that open, reply, and join the conversation through automated warm up — building sender reputation slowly without triggering any spam filter. The domain warm up phase is crucial for the highest deliverability rate and gives you more control over how providers see you. Watch your open rate, reply rate, and click rate climb as the warmup process matures.
Che cos'è un'infrastruttura per email fredde?
Cold email infrastructure is the technical setup used to send emails at scale for outreach. It includes sending domains, mailboxes, three dedicated IPs or shared IPs, a private IP, DNS records, and a clean email server. The unlimited plan tiers from providers like Maildoso let you avoid extra cost when scaling, with no surprise fees.
Is Warmy worth it and is Warmy good for cold email?
Yes — for teams that struggle with the spam folder, Warmy is worth it. Warmy pricing is custom-quoted by plan, so contact sales for exact figures; the Warmy login dashboard gives you a free email warmup taste of the experience for new accounts. Warmy customer support is responsive, and Warmy alternatives like Warmbox or Mailwarm exist but lack Adeline AI as an Assistente AI and the inbox placement test depth. Each warmup email sent through the system helps improve sender reputation gradually. The Warmy app and Warmy free trial period help you confirm it’s the best email warmup tool, best email warmup, best email deliverability fix, and best deliverability tool for your stack before committing.













