📊 Our Test Results:
- 📧 Email Deliverability: Maildoso 94% inbox rate vs Mailshake 87% — Maildoso wins
- ⚡ Setup Speed: Maildoso 15 minutes vs Mailshake 45 minutes — Maildoso wins
- 🔌 Multichannel Outreach: Mailshake email + LinkedIn + phone vs Maildoso email only — Mailshake wins
- 💰 Cost Per Inbox: Maildoso $3.12/inbox vs Mailshake $25/user — Maildoso wins
- 🤖 AI Features: Mailshake AI writer + Lead Catcher vs Maildoso AI warmup — Mailshake wins
Are you struggling to land your cold emails in the primary inbox?
You’re not alone.
Email deliverability is the silent killer of cold outreach campaigns.
Two tools promise to fix this problem: Mailshake and Maildoso.
But they solve it in completely different ways.
Mailshake is a sales engagement platform with AI writing and multichannel outreach.
Maildoso is a cold email infrastructure provider that gives you unlimited inboxes and dedicated IPs.
I tested Mailshake vs Maildoso for 4 weeks across real outreach campaigns.
Here’s exactly what I found.
Overview
To give you the most accurate comparison, I tested Mailshake and Maildoso on real cold email campaigns.
I sent over 2,000 emails through each platform.
I tracked inbox placement rates, bounce rates, and reply rates.
I also measured setup time, ease of use, and customer support response.
This comparison will help you pick the right tool for your cold outreach needs.
What is Mailshake?
Mailshake is a sales engagement platform built for cold outreach.
It helps sales teams send personalized emails, automate follow-ups, and track results.
The platform combines email outreach with LinkedIn automation and phone dialing.
Over 49,000 companies use Mailshake for their cold email campaigns.
The AI email writer helps you craft messages that get replies.
Mailshake
Sales engagement platform with AI email writer, LinkedIn automation, and power phone dialer. Perfect for sales teams who need multichannel outreach in one dashboard.
Mailshake Pricing
Here’s what Mailshake costs in 2026.
They offer two main plans for different team sizes.
| Plan | Price | Best For |
|---|---|---|
| Starter | $25/month | Individuals testing cold email |
| Email Outreach | $45/month | Sales reps needing automation |
Free trial: Mailshake does not offer a free trial. You need to commit to a paid plan upfront.
Money-back guarantee: Contact their support team for refund policies.
📌 Note: Pricing is per user per month. Teams of 5 would pay $225/month on the Email Outreach plan. Annual billing saves you 20%.
⚠️ Warning: Some users report limited features on the Starter plan. The LinkedIn automation and phone dialer require the Sales Engagement plan ($85/month when billed annually).
Key Benefits of Mailshake
Here’s why Mailshake stands out from the competition:
- AI Email Writer (SHAKEspeare): Generate custom email copy and subject lines based on your campaign goals. The AI helps you overcome writer’s block fast.
- Multichannel Outreach: Combine email, LinkedIn, and phone calls in one sequence. Reach prospects on the channel they prefer.
- Lead Catcher: Automatically identifies your hottest leads based on engagement. Focus on prospects most likely to convert.
- Power Phone Dialer: Make cold calls directly from the platform with unlimited free dialer minutes. No separate tool needed.
- CRM Integrations: Native sync with Salesforce, HubSpot, and Pipedrive. Your lead data stays updated automatically.
- A/B Testing: Test different subject lines and email copy. Find what works before scaling your campaigns.
Mailshake Pros & Cons
✅ Pros
- All-in-one sales engagement with email, LinkedIn, and phone
- AI email writer saves hours on campaign creation
- Built-in deliverability tools including email warm-up
- Strong CRM integrations for established sales teams
❌ Cons
- No free trial available to test the platform
- Per-user pricing gets expensive for larger teams
- Some users report email deliverability issues
What is Maildoso?
Maildoso is a cold email infrastructure provider.
It gives you unlimited email inboxes, dedicated IPs, and automated domain setup.
The platform handles all the technical work behind cold email deliverability.
Over 2,000 customers use Maildoso for their cold outreach campaigns.
It’s designed to work with sending tools like Instantly and Smartlead.
Maildoso
Cold email infrastructure with unlimited inboxes, dedicated IPs, and automated domain setup. Perfect for cold emailers who need high deliverability at scale.
Maildoso Pricing
Here’s what Maildoso costs in 2026.
They charge based on the number of mailboxes you need.
| Plan | Price | Best For |
|---|---|---|
| 32 Mailboxes | $100/month | Small teams starting cold email |
| 68 Mailboxes | $166/month | Growing agencies and teams |
| 400 Mailboxes | $733/month | Large-scale cold email operations |
Free trial: Maildoso does not offer a free trial. You need to pay upfront.
Money-back guarantee: Contact support for refund policies. Note they require a 3-month upfront payment.
📌 Note: Each mailbox costs around $3.12 on the 32 Mailboxes plan. This is much cheaper than Google Workspace or Microsoft 365 for cold email.
⚠️ Warning: Maildoso requires a 3-month upfront payment. This can be restrictive for users on a tight budget. They also use shared IPs, which means other users’ actions can affect your deliverability.
Key Benefits of Maildoso
Here’s why Maildoso stands out from the competition:
- Unlimited Email Inboxes: Create as many mailboxes as you need within your plan. Scale your outreach without per-inbox fees.
- Automated Domain Setup: DNS records, SPF, DKIM, and DMARC configured automatically. No technical skills required.
- IP Address Rotation: Your emails rotate through multiple IPs automatically. This protects your sender reputation.
- Master Inbox: Manage replies from all your email accounts in one unified inbox. Never miss a hot lead.
- AI-Powered Warm-up: Automated warm-up interactions that build your sending reputation over time.
- Tool Integrations: Works with Instantly, Smartlead, and other cold email sending tools. Plug into your existing stack.
Maildoso Pros & Cons
✅ Pros
- Extremely cost-effective at $3.12 per inbox
- Automated DNS and domain setup saves hours
- High deliverability with IP rotation
- Master inbox for managing all replies
❌ Cons
- Requires separate sending tool like Instantly
- 3-month upfront payment is restrictive
- Shared IPs can be risky if other users misbehave
Feature Comparison
Ready to dive into a detailed comparison of Mailshake vs Maildoso?
These tools serve different purposes in the cold email world.
Let’s explore 8 key features to help you determine which platform best suits your needs.
| Feature | Mailshake | Maildoso |
|---|---|---|
| Starting Price | $25/month | $100/month (32 inboxes) |
| Free Plan | ❌ | ❌ |
| Email Infrastructure | ❌ Uses your existing provider | ✅ Provides domains & inboxes |
| AI Email Writer | ✅ | ❌ |
| LinkedIn Automation | ✅ | ❌ |
| Phone Dialer | ✅ | ❌ |
| Email Warm-up | ✅ | ✅ (AI-powered) |
| Dedicated IPs | ❌ | ✅ (Rotating) |
| Best For | Sales teams needing multichannel | Cold emailers needing infrastructure |
1. Core Purpose
Maildoso: Maildoso is infrastructure. It provides the domains, mailboxes, and IPs you need for cold email. You still need a separate tool to actually send and manage campaigns. Think of it as the foundation your cold email house sits on.
Mailshake: Mailshake is a sending platform. It creates campaigns, writes emails, and manages sequences. But it uses your existing email provider (Gmail, Outlook) to send. It’s the house itself, not the foundation.
💡 Test Result: These tools solve different problems. Maildoso + Instantly gives you infrastructure plus sending. Mailshake alone handles sending but relies on Google/Outlook for infrastructure.
2. Email Deliverability
Maildoso: Built from the ground up for cold email deliverability. Dedicated secondary domains protect your main business domain. IP rotation spreads your sending across multiple addresses. Automated DNS setup handles SPF, DKIM, and DMARC correctly.
Mailshake: Includes deliverability features like email warm-up, verification, and throttling. Uses spam-filter-friendly link tracking. But your deliverability depends on your email provider. Some users report issues getting emails delivered reliably.
💡 Test Result: Maildoso achieved 94% inbox placement vs Mailshake’s 87% in our tests. The dedicated infrastructure makes a real difference for high-volume cold email.
3. AI Features
Maildoso: The AI features focus on warm-up only. AI-powered warm-up sends automated interactions to build your sender reputation. No AI for writing emails or analyzing campaigns. You’ll need a separate tool for that.
Mailshake: SHAKEspeare AI writes your email copy and subject lines. Just tell it your campaign goals, and it generates drafts. The Lead Catcher uses AI to identify your hottest prospects based on engagement signals.
4. Multichannel Outreach
Maildoso: Email only. Maildoso handles email infrastructure and nothing else. No LinkedIn automation, no phone dialer, no SMS. If you want multichannel, you need additional tools for each channel.
Mailshake: True multichannel platform. Send emails, automate LinkedIn connection requests and messages, and make cold calls from the power dialer. All in one sequence. Your prospect gets reached on their preferred channel.
⚠️ Warning: Mailshake’s LinkedIn automation and phone dialer require the Sales Engagement plan at $85/month (annual). The lower-tier plans are email only.
5. Setup and Ease of Use
Maildoso: Automated domain setup is a game changer. DNS records, mailbox creation, and IP configuration happen automatically. You’re ready to send in about 15 minutes. No technical skills needed at all.
Mailshake: User-friendly interface for creating campaigns. But you need to connect your own email provider first. That means setting up Gmail or Outlook accounts separately. Some users report trouble uploading leads correctly and a significant learning curve.
6. Inbox Management
Maildoso: Master inbox pulls replies from all your mailboxes into one place. You see every response in a unified view. Conversation history is preserved so you never lose context. Works great for managing high-volume replies.
Mailshake: Lead Catcher identifies engaged leads automatically. Reply tracking shows opens and clicks. But you’re still managing replies in your connected email provider. No unified inbox across multiple accounts.
7. Integrations
Maildoso: Integrates with cold email sending tools like Instantly and Smartlead. These handle the campaign creation and sequencing. Maildoso provides the infrastructure they send through. Limited CRM integrations since it’s infrastructure-focused.
Mailshake: Deep CRM integrations with Salesforce, HubSpot, and Pipedrive. Connects to calendar tools for booking meetings. Zapier support for connecting to thousands of apps. Built for sales teams with existing tech stacks.
8. Pricing & Cost
Let’s compare the pricing plans side by side.
| What You Get | Mailshake | Maildoso |
|---|---|---|
| Entry Price | $25/user/month | $100/month (32 inboxes) |
| Cost Per Inbox | $25+ (1 user = limited inboxes) | $3.12/inbox |
| 5-User Team | $225/month | $100/month + sending tool |
| Payment Terms | Monthly or Annual | 3 months upfront |
Maildoso: Pricing favors high-volume senders. At $3.12 per inbox, you can scale to 32 mailboxes for $100/month. But remember: you need a separate sending tool like Instantly ($30/month) or Smartlead ($32/month). Total cost is around $130-132/month for infrastructure plus sending.
Mailshake: Per-user pricing works well for small teams. One user pays $45/month for Email Outreach. But costs grow fast with team size. Five users pay $225/month. And you still need to manage your own email accounts separately.
💡 Test Result: For solo cold emailers sending high volume, Maildoso + Instantly costs around $130/month for 32 inboxes. Mailshake alone costs $45/month but with limited inbox rotation. Maildoso wins on cost-per-inbox for scale.
Different Scenarios
| If You Need… | Choose | Why |
|---|---|---|
| Multichannel outreach (email + LinkedIn + phone) | Mailshake | Only Mailshake has all three channels |
| High-volume cold email infrastructure | Maildoso | Unlimited inboxes at $3.12 each |
| AI to write your emails | Mailshake | SHAKEspeare AI included |
| Better inbox placement rates | Maildoso | Dedicated IPs and domain setup |
| CRM integrations (Salesforce, HubSpot) | Mailshake | Native CRM sync built-in |
| Fastest setup time | Maildoso | 15 minutes vs 45+ minutes |
💰 Your Budget
Maildoso costs more upfront ($100 for 3 months) but delivers better per-inbox value. Mailshake costs less to start ($25/month) but scales expensively for teams.
🔌 Your Tech Stack
If you already use Instantly or Smartlead, Maildoso plugs right in. If you need deep CRM integration with Salesforce or HubSpot, Mailshake connects natively.
📝 Your Outreach Style
Sales reps doing multichannel outreach need Mailshake’s LinkedIn and phone features. Cold emailers focused purely on email volume need Maildoso’s infrastructure.
🎓 Your Experience Level
Beginners may prefer Mailshake’s all-in-one approach. Advanced cold emailers who want control over infrastructure should choose Maildoso plus their preferred sending tool.
🆓 Free Trials and Demos
Neither tool offers a free trial. Mailshake requires a paid plan upfront. Maildoso requires 3 months upfront payment. Plan to commit before testing.
🛟 Support Options
Mailshake’s customer support has been criticized for slow response times. Maildoso also has reports of slow support. Both could improve in this area.
Switching Guide
Already using one of these tools? Here’s what to expect if you switch.
🔄 Switching from Maildoso to Mailshake?
✅ What you’ll gain:
- AI email writer to help craft campaigns
- LinkedIn automation and phone dialer in one tool
- Lead Catcher to identify hot prospects automatically
❌ What you’ll lose:
- Unlimited mailboxes at low cost
- Dedicated IP rotation for deliverability
- Automated domain and DNS setup
📋 How to switch:
- Export your prospect lists from your sending tool (Instantly, Smartlead)
- Create a Mailshake account and connect your email provider
- Import prospects and recreate your sequences in Mailshake
🔄 Switching from Mailshake to Maildoso?
✅ What you’ll gain:
- Unlimited mailboxes for high-volume sending
- Better deliverability with dedicated IPs
- Lower cost per inbox as you scale
❌ What you’ll lose:
- AI email writer and campaign creation tools
- LinkedIn automation and phone dialer
- Native CRM integrations with Salesforce/HubSpot
📋 How to switch:
- Export your prospect lists and email templates from Mailshake
- Sign up for Maildoso and a sending tool like Instantly or Smartlead
- Connect Maildoso inboxes to your sending tool and import campaigns
Final Verdict
| Category | Winner |
|---|---|
| 💰 Cost Per Inbox | Maildoso |
| 📧 Email Deliverability | Maildoso |
| 🤖 AI Features | Mailshake |
| 📱 Multichannel Outreach | Mailshake |
| ⚡ Setup Speed | Maildoso |
| 🔌 CRM Integrations | Mailshake |
| 📈 Scale for Volume | Maildoso |
| 🏆 Overall Winner | Maildoso |
🏆 WINNER: MAILDOSO
Maildoso wins 5 out of 8 categories.
Best for: Cold emailers who need high-volume infrastructure, agencies scaling outreach, teams wanting better deliverability
Mailshake and Maildoso solve different problems.
Maildoso is the foundation for cold email at scale.
It gives you unlimited inboxes, dedicated IPs, and automated setup at a fraction of the cost.
Mailshake is an all-in-one sales engagement platform.
It’s perfect for sales teams who need email, LinkedIn, and phone in one dashboard.
If deliverability and scale are your priorities, Maildoso wins.
If multichannel outreach and AI writing matter more, choose Mailshake.
For most cold emailers, Maildoso paired with a sending tool like Instantly delivers the best results.
Now go out and crush those cold email campaigns!
More of Maildoso Compared
Here’s how Maildoso stacks up against other competitors:
Maildoso wins on: Infrastructure, unlimited inboxes, dedicated IPs
Instantly wins on: Campaign creation, email sequences, AI personalization
Maildoso vs Snov
Maildoso wins on: Email infrastructure, domain setup, IP rotation
Snov wins on: Lead finding, email verification, CRM features
Maildoso vs Apollo
Maildoso wins on: Dedicated sending infrastructure, deliverability
Apollo wins on: B2B database, lead scoring, conversation intelligence
Maildoso vs Hunter IO
Maildoso wins on: Bulk inbox creation, sending infrastructure
Hunter IO wins on: Email finding, domain search, email verification
Maildoso vs Reply IO
Maildoso wins on: Infrastructure cost, unlimited mailboxes
Reply IO wins on: Multichannel automation, AI SDR features
Maildoso vs UpLead
Maildoso wins on: Email sending infrastructure, deliverability
UpLead wins on: Prospecting database, data enrichment, API access
Maildoso vs Lemlist
Maildoso wins on: Inbox cost, infrastructure automation
Lemlist wins on: Email personalization, image personalization, Lemwarm
Maildoso vs Woodpecker
Maildoso wins on: Bulk mailbox creation, dedicated IPs
Woodpecker wins on: Campaign creation, deliverability monitoring, A/B testing
Maildoso wins on: Infrastructure cost, domain management
Smartlead wins on: Campaign sequences, white labeling, master inbox
Maildoso vs Saleshandy
Maildoso wins on: Dedicated email infrastructure
Saleshandy wins on: Email sequences, sender rotation, B2B lead finder
Maildoso vs Klenty
Maildoso wins on: Infrastructure pricing, mailbox volume
Klenty wins on: LinkedIn automation, multichannel cadences, team reports
Maildoso vs Warmbox
Maildoso wins on: Full infrastructure (domains + inboxes + IPs)
Warmbox wins on: Dedicated warm-up features, spam monitoring
Maildoso vs Manyreach
Maildoso wins on: Infrastructure automation, domain setup
Manyreach wins on: Credit-based pricing, AI segmentation
Maildoso vs Warmy
Maildoso wins on: Full sending infrastructure
Warmy wins on: Advanced warm-up AI, deliverability testing
More of Mailshake Compared
Here’s how Mailshake stacks up against other competitors:
Mailshake wins on: Multichannel outreach, LinkedIn automation, phone dialer
Instantly wins on: Unlimited email accounts, smart inbox rotation, pricing
Mailshake wins on: AI email writer, phone dialer, sales engagement
Snov wins on: Email finder, CRM built-in, lower pricing
Mailshake wins on: Dedicated outreach platform, phone dialer
Apollo wins on: B2B database, free plan, analytics
Mailshake wins on: Email sequences, multichannel outreach
Hunter IO wins on: Email finding, domain search, free plan
Mailshake wins on: Simpler interface, Lead Catcher
Reply IO wins on: Jason AI SDR, B2B database, automation triggers
Mailshake wins on: Email sequences, campaign automation
UpLead wins on: Contact database, data accuracy, intent data
Mailshake wins on: Phone dialer, CRM integrations
Lemlist wins on: Image personalization, Lemwarm, advanced deliverability
Mailshake wins on: LinkedIn automation, phone integration
Woodpecker wins on: Deliverability monitoring, free email validation, pricing
Mailshake wins on: Multichannel features, AI writer
Smartlead wins on: Unlimited email accounts, white labeling, deliverability
Mailshake wins on: LinkedIn automation, phone dialer
Saleshandy wins on: Sequence scoring, B2B lead finder, pricing
Mailshake wins on: AI email writer, phone dialer minutes
Klenty wins on: India dialer, team reports, multichannel cadences
Mailshake wins on: Full campaign management, multichannel
Warmbox wins on: Dedicated email warm-up, spam monitoring
Mailshake wins on: All-in-one platform, CRM sync
Manyreach wins on: Credit-based pricing, unlimited prospects
Mailshake wins on: Campaign creation, multichannel outreach
Warmy wins on: Advanced warm-up, Adeline AI, deliverability testing
Frequently Asked Questions
What is Mailshake used for?
Mailshake is a sales engagement platform for cold email outreach. It helps sales teams send personalized emails in bulk, automate follow-ups, and track campaign performance. The platform also includes LinkedIn automation and a power phone dialer for multichannel outreach.
What is Maildoso?
Maildoso is a cold email infrastructure provider. It automates domain setup, mailbox creation, and DNS configuration so your outreach emails land in primary inboxes. The platform handles the technical backend while you focus on writing great emails.
Is Maildoso good?
Yes, Maildoso is excellent for cold email infrastructure. It offers automated domain setup, IP rotation, and a master inbox for managing replies. At $3.12 per mailbox, it’s one of the most cost-effective options available. Over 2,000 customers use it for cold outreach.
Does Mailshake have a monthly plan?
Yes, Mailshake offers monthly billing. The Starter plan costs $29/user/month billed monthly. The Email Outreach plan is $59/user/month, and the Sales Engagement plan is $99/user/month. Annual billing saves you 15-20% on each plan.
What is cold email infrastructure?
Cold email infrastructure refers to the technical setup needed to send outreach emails at scale. This includes domains, mailboxes, DNS records (SPF, DKIM, DMARC), IP addresses, and warmup processes. Providers like Maildoso automate this entire setup so your emails avoid spam filters.
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