

⚡ Quick Verdict:
- Chạy: Instantly starts at $30/month vs Maildoso at $100/month for 32 mailboxes.
- Phù hợp nhất cho: Instantly for complete cold email outreach; Maildoso for cold email infrastructure only.
- Điểm khác biệt chính: Instantly is an all-in-one sales engagement platform; Maildoso is a cold email infrastructure provider with no built-in outreach tools.
- Our pick: Instantly for most users because it bundles unlimited email accounts, unlimited email warmup, and a B2B lead database in one platform.

Choosing between Instantly and Maildoso comes down to one câu hỏi.
Do you need a complete cold email platform or just email infrastructure?
Instantly handles everything from sending accounts to campaign analytics.
Maildoso only sets up email accounts and domains for you.
You still need a separate cold emailing tool to run outreach campaigns with Maildoso.
This guide breaks down which tool fits your business needs.
Toàn cảnh
This Instantly vs Maildoso comparison covers pricing, key features, and cold email deliverability.
We also explain who each tool works best for.
Our sources include published specs, documentation, and G2 reviews from real users.
By the end, you will make an informed decision on which platform fits your cold outreach goals.
Both tools surface the data sales teams need to make informed decisions about cold email infrastructure.
"Ngay lập tức" là gì?
Instantly là một nền tảng tương tác bán hàng và công cụ tiếp cận khách hàng tiềm năng qua email.
It uses AI to help sales and marketing teams automate lead generation.
Instantly lets you run large-scale email campaigns and boost email deliverability.
The platform combines unlimited email accounts, unlimited email warmup, and a B2B lead finder.
Most Instantly users choose it to send thousands of personalized emails per day.
Instantly turns leads into booked meetings through smart scheduling and automated follow ups.

🏆 Người chiến thắng: Ngay lập tức
Instantly bundles unlimited email accounts, unlimited email warmup, and a B2B lead database. The warmup pool serves over 1.5 million users.
Giá tức thì
Here is what Instantly costs in 2026. Let us break it down.
| Kế hoạch | Giá | Tốt nhất cho |
|---|---|---|
| Sự phát triển | 30 đô la/tháng | Solo founders sending cold emails |
| Tăng trưởng quá mức | 77,60 đô la/tháng | Sales teams scaling outreach campaigns |
| Tốc độ ánh sáng | 286,30 đô la/tháng | Agencies running separate campaigns |
| Doanh nghiệp | Phong tục | Large teams on the enterprise plan with custom email marketing needs |
Pricing verified March 2026.

Dùng thử miễn phí: Yes, 14-day free trial. No credit card needed to test the Growth plan.
Đảm bảo hoàn tiền: No formal refund policy. Cancel anytime to stop billing.
📌 Ghi chú: The Growth plan at $30 per month includes unlimited email warmup and unlimited email accounts. Users have reported saving over $10,000 per year on warm-up alone after switching to Instantly.
⚠️ Cảnh báo: The B2B lead finder with verified leads is a separate add-on. The Growth plan covers sending and warmup only.
Những lợi ích chính của việc sử dụng tức thì
Here is what makes Instantly worth considering:
- Tài khoản email không giới hạn: Connect unlimited email accounts for outreach. Inbox rotation spreads sending volume across all your sending accounts to protect your sender reputation.
- Khởi động email không giới hạn: The warmup pool has over 1.5 million users. This makes it the largest peer-to-peer deliverability network for avoiding spam filters.
- Cơ sở dữ liệu khách hàng tiềm năng B2B: The optional SuperSearch add-on gives access to 160 million B2B contacts. You can filter potential clients by industry, role, and LinkedIn URL.
- Hộp thư đến hợp nhất (Unibox): Manage all campaign replies from one master inbox. This lets you respond fast and close deals without switching between email accounts.
- Các tính năng của AI: Trí tuệ nhân tạo trợ lý writes email content, subject lines, and full sequences. Custom variables and conditional logic enable personalized emails at scale.
- Phân tích chiến dịch: Track response rates, open rates, and reply categories. The AI marks leads by intent to surface hot prospects fast, and advanced automations route them into separate campaigns.
- Tích hợp Zapier: Connect Instantly to your CRM and other sales engagement tools. Native integrations cover most popular email providers, and more features unlock on higher plans.

What Our Team Noticed
Của chúng tôi nhà văn signed up for Instantly and spent several days exploring the platform. Here is what stood out from that hands-on time:
Ưu điểm và nhược điểm của Instantly
✅ Ưu điểm
- Unlimited email accounts and unlimited email warmup on every paid plan
- Largest peer-to-peer deliverability network with 1.5M+ warmup pool users
- Built-in B2B lead finder with access to 160M+ verified leads
- AI features generate subject lines, email content, and full sequences
❌ Nhược điểm
- Email personalization is more basic compared to SmartReach IO
- Campaign builder offers simpler linear sequences than Lemlist
- Relies on third-party integrations rather than native CRM connectors
Maildoso là gì?
Maildoso is a cold email infrastructure provider built for outreach at scale.
It sets up email accounts, sending domains, and DNS records for cold email marketers.
The tool handles SPF, MX, and DKIM configurations automatically.
Maildoso has over 2,000 customers using it for cold email infrastructure.
Most users pair Maildoso with a separate cold email outreach tool like Instantly or Smartlead.
The platform helps you protect your primary business domain with lookalike domains.

Maildoso
Maildoso automates domain setup, mailbox creation, and IP rotation. It is a budget-friendly option compared to Google Workspace.
Bảng giá Maildoso
Here is what Maildoso costs in 2026. The pricing structure scales with how many mailboxes you need.
| Kế hoạch | Giá | Tốt nhất cho |
|---|---|---|
| 32 Mailboxes (Small Package) | 100 đô la/tháng | Solo cold emailers and one domain |
| 68 Mailboxes (Starter Package) | 166 đô la/tháng | Three domains and growing teams |
| 400 Mailboxes (Agency Pack) | 733 đô la/tháng | Agencies managing five domains and more inboxes |
Pricing verified March 2026.

Dùng thử miễn phí: No free trial. Maildoso pricing small package starts at $100/month upfront.
Đảm bảo hoàn tiền: No standard refund policy. Pricing model requires a 3-month upfront payment.
📌 Ghi chú: Maildoso pricing structure is considered low cost compared to other cold email infrastructure providers. The starter package starts at $99 for three months and scales by inboxes.
⚠️ Cảnh báo: The AI warm-up feature of Maildoso is an extra cost. It ranges from $160 to $2,000 per month depending on scale.
Những lợi ích chính của Maildoso
Here is what makes Maildoso worth considering:
- Hộp thư đến không giới hạn: Spin up as many mailboxes as your plan allows. The unlimited plan tier scales for high-volume cold email outreach.
- Quản lý tên miền hàng loạt: Manage multiple domains and own domains from the main site. Maildoso simplifies bulk domain setup for outreach campaigns.
- Hộp thư chính: The master inbox brings replies from multiple email accounts into one primary inbox. It keeps conversation history in one place.
- Thiết lập DNS tự động: Maildoso automates DNS setup, mailbox creation, and IP address rotation. This avoids common technical setup issues with SPF, MX, and DKIM.
- Xoay vòng IP: The platform rotates IP addresses across mailboxes for deliverability optimization. This helps emails get delivered reliably and stay out of the spam folder.
- Chuyển hướng tên miền: Domain forwarding lets you point lookalike domains to your main site. This protects your primary business domain during cold email campaigns.
- Truy cập API: The API access lets you connect Maildoso to your favorite email client and other cold emailers tools. Native links to Instantly and Smartlead make setup user friendly.

What Our Team Noticed
Our writer signed up for Maildoso and tested the domain setup workflow. Here is what stood out:
Ưu điểm và nhược điểm của Maildoso
✅ Ưu điểm
- Cost effective alternative to Google Workspace and Microsoft 365
- Automated domain setup, mailbox creation, and DNS records (SPF, DKIM)
- Master inbox manages replies from multiple email accounts in one place
- Cost savings on bulk inbox setup compared to other email providers
❌ Nhược điểm
- No built-in email warmup feature, which is crucial for avoiding spam filters
- Uses shared IPs that can cause inconsistent deliverability from other users
- Customer support reported as slow for urgent issues
So sánh tính năng
Ready to dive into a detailed Instantly vs Maildoso comparison?
We will explore 10 key features to help you find the best tool for your cold outreach needs.
| Tính năng | Ngay lập tức | Maildoso |
|---|---|---|
| Giá khởi điểm | 30 đô la/tháng | 100 đô la/tháng |
| Dùng thử miễn phí | ✅ 14 ngày | ❌ |
| Tài khoản email không giới hạn | ✅ | ✅ (per plan) |
| Khởi động email không giới hạn | ✅ Bao gồm | ❌ Extra cost ($160-$2K/mo) |
| Trình xây dựng chiến dịch | ✅ | ❌ |
| Cơ sở dữ liệu khách hàng tiềm năng B2B | ✅ 160M contacts | ❌ |
| Hộp thư chính | ✅ Unibox | ✅ Hộp thư chính |
| Tính năng AI | ✅ Subject lines, sequences | ❌ |
| IP đã dâng hiến | ❌ Đã chia sẻ | ❌ Shared (3 dedicated IPs option) |
| Quản lý tên miền | Giới hạn | ✅ Bulk lookalike domains |
| Tốt nhất cho | Complete cold email outreach | chỉ có cơ sở hạ tầng email lạnh |
1. Mục đích và phạm vi
Ngay lập tức: Instantly is a complete sales engagement platform for cold email campaigns. It handles sending accounts, automated outreach, the campaign builder, and reply management in one product. You can run separate campaigns, mark leads by intent, and track response rates from a single dashboard.
Maildoso: Maildoso is a cold email infrastructure provider, not a cold emailing tool. It provides mailboxes and sending domains but does not run outreach campaigns itself. Cold email marketers connect Maildoso to a separate platform to send emails.
2. Unlimited Email Accounts and Inbox Rotation
Ngay lập tức: Every plan includes unlimited email accounts for outreach. With unlimited accounts and inbox rotation, sending emails spreads across all your sending accounts within a single campaign. This protects sender reputation and lets you send thousands of emails without hitting per-account limits.

Maildoso: Maildoso provides unlimited inboxes capped by plan tier. The starter package offers 32 mailboxes; the agency pack gives 400. IP rotation across multiple email accounts helps avoid spam filters during cold email outreach.
3. Email Warmup and Sender Reputation
Ngay lập tức: The warmup feature is built in and unlimited on every paid plan. The deliverability network includes over 1.5 million users, making it the largest peer-to-peer warmup pool. The warm up simulates human-like conversations to build sending reputation and dodge the spam folder.

Maildoso: Maildoso lacks a built-in email warmup feature on standard plans. The AI-powered warmup is an extra cost ranging from $160 to $2,000 per month. Without warmup, cold emails risk hitting spam folders before building sender reputation.

⚠️ Cảnh báo: Email warmup is crucial for cold email campaigns to build a positive sending reputation. Maildoso’s missing built-in warmup is one of the biggest tradeoffs versus Instantly.
4. Lead Generation and B2B Lead Database
Ngay lập tức: The Instantly lead finder taps a B2B lead database of 160M+ contacts via SuperSearch. You can filter verified leads by industry, role, LinkedIn URL, and revenue. The lead lists feed directly into outreach campaigns to scale your outreach.

Maildoso: Maildoso does not provide lead generation tools. You bring your own lead lists from third-party sources. The platform focuses on email infrastructure rather than finding potential clients.
5. Campaign Builder and Automated Outreach
Ngay lập tức: The campaign builder uses smart scheduling and conditional follow ups. Custom variables enable personalized emails at scale. You can set up automated outreach with separate campaigns for different sales strategies and book meetings around the clock.

Maildoso: Maildoso has no campaign builder. You pair it with a separate cold email tool like Instantly or Smartlead to run email campaigns. This adds another subscription cost but gives more control over your stack.
6. AI Features and Personalization
Ngay lập tức: Cái Trợ lý AI writes subject lines, full email content, and entire sequences. Custom variables and conditional logic create personalized emails for each recipient. AI categorizes replies by intent, which speeds up early-stage conversations and helps close deals faster.

Maildoso: Maildoso offers no AI features for writing or personalization. The platform focuses purely on email infrastructure. You handle email content in your separate outreach tool.
7. Quản lý hộp thư đến và thư trả lời thống nhất
Ngay lập tức: The unified inbox is called Unibox. It pulls every reply from every email account into one feed. The AI marks leads as interested, not now, or unsubscribed so you can respond to hot prospects first.

Maildoso: The master inbox displays all replies from all mailboxes in one view. You can track conversation history per recipient. The master inbox lacks AI-based reply classification you get from Instantly’s Unibox.

8. Email Deliverability and Spam Filters
Ngay lập tức: Email deliverability comes from the 1.5M+ warmup pool plus integrated email validation. The warmup simulates email opens and reads to build sending reputation. Users have reported getting 2-5 meetings every day after setting up their first Instantly campaign.

Maildoso: Maildoso uses shared IPs, which can cause inconsistent deliverability depending on other users on the same IP address. Three dedicated IPs are available as an upgrade for better deliverability. Without the built-in warmup, sender reputation builds slower.
⚠️ Cảnh báo: Cold email infrastructure providers like Maildoso depend on shared IPs by default. Three dedicated IPs cost extra and shared IPs can drag down high deliverability.
9. Domain Management and Setup
Ngay lập tức: Instantly connects to email accounts you already own through Google Workspace or Microsoft 365. You handle domain setup outside the tool. The platform does not bulk-provision lookalike domains for you.
Maildoso: Maildoso handles domain setup and mailbox creation automatically. The small package covers one domain, the starter package covers three domains, and the agency pack covers five domains. Domain forwarding redirects lookalike domains to your main site for brand protection.

10. Integrations and API Access
Ngay lập tức: Standout features include Zapier integration and native links to popular CRMs. The platform connects to your sales engagement stack through API access. According to user reviews, integrations are easier to set up than SmartReach IO’s native CRM connectors.
Maildoso: Maildoso integrates with cold email and marketing tools like Instantly and Smartlead. The API access lets developers automate mailbox provisioning. Maildoso alternatives like Inframail and Mailforge offer similar integration breadth.

Giá cả & Chi phí
Hãy cùng so sánh các gói giá cạnh nhau.
| Kế hoạch | Ngay lập tức | Maildoso |
|---|---|---|
| Món khai vị / Món đầu tiên | Tăng trưởng: 30 đô la/tháng | 32 hộp thư: 100 đô la/tháng |
| Hạng trung | Tăng trưởng vượt bậc: 77,60 đô la/tháng | 68 hộp thư: 166 đô la/tháng |
| Scale / Agency | Tốc độ ánh sáng: 286,30 đô la/tháng | 400 hộp thư: 733 đô la/tháng |
| Doanh nghiệp | Phong tục | Liên hệ bộ phận bán hàng |
Ngay lập tức: The growth plan is $30/month and includes unlimited email warmup plus unlimited email accounts. The basic plan covers sending and warmup; the B2B verified leads add-on is priced separately. Compared to other tools, Instantly’s pricing is competitive and helps businesses scale outreach efforts effectively.
Maildoso: The cost effective starter plan is $100/month for 32 mailboxes. Maildoso pricing structure scales by inbox count rather than feature tier. The pricing model requires a 3-month upfront payment, which is restrictive for users on a tight budget.
Các kịch bản khác nhau
| Nếu bạn cần… | Chọn | Tại sao |
|---|---|---|
| Complete cold email tool | Ngay lập tức | Built-in campaigns and warmup |
| Bulk mailbox infrastructure | Maildoso | Up to 400 mailboxes per plan |
| Built-in lead generation | Ngay lập tức | 160M+ B2B lead database |
| Lookalike domains for cold outreach | Maildoso | Bulk domain setup and forwarding |
| Tight budget under $50 | Ngay lập tức | Growth plan at $30/month |
| Beginner friendly setup | Ngay lập tức | One platform, no extra cold email tool needed |
💰 Ngân sách của bạn
Instantly’s growth plan at $30 per month is the cost effective choice. Maildoso pricing small package at $100 plus a separate cold email tool runs $130+ per month.
🔌 Bộ công nghệ của bạn
Nếu bạn đã sử dụng Smartlead or Lemlist, Maildoso plugs in as infrastructure. If you want everything in one place, Instantly is the standout features bundle.
📧 Khối lượng gửi của bạn
Maildoso’s agency pack provides 400 mailboxes for sending thousands of cold emails daily. Instantly offers unlimited email accounts to scale your outreach without per-inbox caps.
🎓 Trình độ kinh nghiệm của bạn
Instantly is user friendly for beginners doing cold emailing for the first time. Maildoso requires you to manage technical setup like DNS records and pair it with a separate cold email tool.
🆓 Dùng thử và bản demo miễn phí
Instantly offers a 14-day free trial with no credit card needed. Maildoso has no free trial and requires payment upfront, so test it through a partner like Smartlead first.
🛟 Các tùy chọn hỗ trợ
Instantly offers 24/7 chat support and a deep knowledge base. Maildoso has been reported to have slow customer support response times for urgent issues.
Hướng dẫn chuyển đổi
Bạn đã sử dụng một trong những công cụ này rồi? Dưới đây là những điều bạn cần biết nếu chuyển sang sử dụng công cụ khác.
🔄 Bạn đang chuyển từ Instantly sang Maildoso?
✅ Những lợi ích bạn sẽ nhận được:
- Bulk domain setup with five domains and three domains options
- Domain forwarding from lookalike domains to your main site
- More control over your cold email infrastructure
❌ Những gì bạn sẽ mất:
- Built-in unlimited email warmup (must add it as extra cost)
- Campaign builder and AI features for personalized emails
- Access to Instantly lead finder and 160M B2B lead database
📋 Cách chuyển đổi:
- Export your lead lists and email campaigns from Instantly
- Buy a Maildoso starter package and a separate cold email tool
- Connect Maildoso mailboxes to your new outreach platform via API access
🔄 Bạn đang chuyển từ Maildoso sang Instantly?
✅ Những lợi ích bạn sẽ nhận được:
- Unlimited email warmup included in the growth plan
- AI features for subject lines, email content, and follow ups
- Built-in B2B lead finder with verified leads from the database
❌ Những gì bạn sẽ mất:
- Bulk lookalike domains and automated DNS setup
- Three dedicated IPs option from the agency pack
- Granular control over sending domains and shared IPs
📋 Cách chuyển đổi:
- Pause your Maildoso outreach campaigns and export contact lists
- Sign up for the Instantly growth plan and connect your email accounts
- Import your lead lists and rebuild outreach campaigns in the campaign builder
What Our Review Didn’t Cover
This comparison focused on solo founders and small teams running cold email campaigns. We did not test enterprise SSO, custom API access setups, or specialized industry compliance needs. Our observations are based on the March 2026 versions of both platforms. If you manage 1,000+ mailboxes or send millions of emails per month, your business needs may differ from what we covered here.
Phán quyết cuối cùng
| Loại | Người thắng |
|---|---|
| 💰 Giá cả | Ngay lập tức |
| 🚀 Các tính năng chính | Ngay lập tức |
| 📧 Khả năng gửi email thành công | Ngay lập tức |
| 🎯 Tạo khách hàng tiềm năng | Ngay lập tức |
| 🌐 Domain Management | Maildoso |
| 🤖 Tính năng AI | Ngay lập tức |
| 🔌 Tích hợp | Ngay lập tức |
| 👶 Dễ sử dụng | Maildoso |
| 🏆 Người chiến thắng chung cuộc | Ngay lập tức |
🏆 NGƯỜI CHIẾN THẮNG: NGAY LẬP TỨ
Thắng ngay lập tức ở 6 trong số 8 hạng mục.
Phù hợp nhất cho: Cold email outreach, B2B lead generation, sales engagement workflows
Instantly and Maildoso solve different parts of cold email outreach.
Instantly is the best tool for running outreach campaigns, finding verified leads, and managing replies in one platform.
Maildoso is the cold email infrastructure provider you bolt on when you need bulk lookalike domains and more inboxes.
Maildoso is excellent for agencies managing dedicated IP setups across many client domains.
However, if you need a complete cold emailing stack with email validation and AI features, Instantly is the better choice.
Xem thêm các bài viết so sánh tức thì
Here is how Instantly stacks up against other cold email competitors:
Instantly so với Smartlead
Thắng ngay lập tức trên: Larger warmup pool (1.5M+ users), built-in B2B lead database, simpler campaign builder for beginners.
Smartlead chiến thắng nhờ: White-label options for agencies, more flexible API access, lower entry pricing for small teams.
Đối đầu trực tiếp với Apollo
Thắng ngay lập tức trên: Unlimited email warmup included, better email deliverability network, focused cold email workflow.
Apollo thắng nhờ: Bigger B2B lead database (275M+ contacts), built-in dialer, native CRM features.
Instantly so với Lemlist
Thắng ngay lập tức trên: Cheaper growth plan ($30 vs $59), unlimited email accounts on every tier, larger warmup network.
Lemlist thắng nhờ: More complex campaign creation, video personalization, multichannel sequences with LinkedIn touches.
So sánh Instantly và Mailshake
Thắng ngay lập tức trên: Built-in lead finder, larger deliverability pool, unlimited email warmup at no extra cost.
Mailshake thắng nhờ: LinkedIn outreach integration, phone dialer for sales engagement, simpler interface for first-time users.
Ngay lập tức so với chim gõ kiến
Thắng ngay lập tức trên: Lower starting price, AI-generated subject lines, included verified leads add-on access.
Chim gõ kiến thắng nhờ: Strong agency-friendly white-label options, native HubSpot and Truyền động đường ống sync, dedicated account managers.
So sánh thêm về Maildoso
Here is how Maildoso stacks up against other cold email infrastructure providers:
Maildoso so với Mailforge
Maildoso thắng nhờ: Established customer base of 2,000+ cold emailers, master inbox feature, native Instantly integration.
Mailforge thắng nhờ: Better deliverability and cost efficiency, faster mailbox creation, designed specifically for streamlined cold email setups.
Maildoso so với Inframail
Maildoso thắng nhờ: Cheaper starter package ($100 vs higher Inframail entry), broader cold email tool integrations, simpler dashboard.
Inframail thắng nhờ: Unlimited inboxes for a flat price, dedicated IP addresses included, strong deliverability reputation.
Maildoso so với Mailscale
Maildoso thắng nhờ: Lower entry price for small package, established cold email marketers community, broader documentation.
Mailscale thắng nhờ: Built-in email warmup, 95-100% deliverability guarantee during initial warmup, faster account creation.
Maildoso vs Mission Inbox
Maildoso thắng nhờ: Automated DNS setup for SPF, MX, and DKIM, simpler pricing structure, native API connections to cold email tools.
Mission Inbox wins on: Granular deliverability monitoring per IP and mailbox, advanced analytics for cold email campaigns, deeper sender reputation tracking.
Maildoso so với Google Workspace
Maildoso thắng nhờ: Cost savings for bulk inbox setup, built-in IP rotation, automated lookalike domain provisioning.
Google Workspace thắng thế ở các điểm sau: Mature email providers network, stronger sender reputation by default, full productivity suite beyond email.
Câu hỏi thường gặp
Instantly AI được dùng để làm gì?
Instantly is a sales engagement platform for cold email outreach. Teams use it to automate lead generation, send personalized emails at scale, and book meetings through automated follow ups.
Maildoso là gì?
Maildoso is a cold email infrastructure provider. It automates domain setup, mailbox creation, and IP rotation so cold email marketers can send outreach emails at scale.
Instantly AI có cung cấp bản dùng thử miễn phí không?
Yes, Instantly offers a 14-day free trial. No credit card is needed to test the Growth plan and try out unlimited email warmup features.
Hạ tầng email lạnh là gì?
Cold email infrastructure is the technical setup used to send high volumes of cold emails. It covers sending domains, DNS records, mailboxes, and IP addresses for high deliverability.
Liệu Apollo có tốt hơn Instantly không?
Apollo offers a larger B2B lead database and built-in dialer. Instantly wins on email deliverability with its 1.5M+ warmup pool and unlimited email accounts on every plan.













