⚡ Quick Verdict:
- Chạy: Instantly starts at $30/month with unlimited email accounts. Warmbox starts at $15/month for one inbox.
- Phù hợp nhất cho: Instantly for full cold email campaigns and automated outreach. Warmbox for warm up only, pairing with existing tools.
- Điểm khác biệt chính: Instantly turns leads into book meetings through send emails plus B2B lead database. Warmbox handles only the warm up process.
- Our pick: Instantly for most users — unlimited email warmup, lead finder, and unified inbox in one platform makes informed decisions easier.
Are your cold emails landing in the spam folder instead of the inbox?
You’ve built your lead lists.
You’ve written subject lines that should boost response rates.
But none of it matters if email providers flag your sending reputation.
That’s where Instantly and Warmbox come in.
Both tools warm up your inbox to dodge spam filters.
But one is a full sales engagement platform with advanced automations.
The other focuses purely on the warm up process for cold email inbox health.
We compared both tools for four weeks across multiple email providers.
This Instantly vs Warmbox breakdown shows which is the best tool for your email marketing efforts.
Toàn cảnh
This Instantly vs Warmbox comparison covers pricing, features, and deliverability.
We also break down who each tool works best for.
Our writers signed up for both platforms and tested core features.
Sources include G2 reviews, published documentation, and hands-on use.
By the end, you’ll have an informed decision on which fits your outreach campaigns.
"Ngay lập tức" là gì?
Instantly AI is a sales engagement platform and cold email outreach tool.
It uses AI to help sales and marketing teams automate lead generation.
Đội ngũ bán hàng Sử dụng ngay lập tức to run large-scale email campaigns.
The platform also improves email deliverability through built-in warmup.
Instantly lets you connect unlimited accounts for cold emailing at scale.
Its warmup feature has over 1.5 million users in the largest peer-to-peer deliverability pool.
Ngay lập tức
⭐ 4.3/5 | The all-in-one cold email platform. Connect unlimited email accounts. Send thousands of personalized emails. Find verified leads from a 450M+ B2B lead database. Book meetings on autopilot.
Giá tức thì
Đây là giá của Instantly vào năm 2026.
The growth plan starts at $30/month and includes unlimited email warmup.
| Kế hoạch | Giá | Tốt nhất cho |
|---|---|---|
| Sự phát triển | 30 đô la/tháng | Solo founders running cold email campaigns |
| Tăng trưởng quá mức | 77,60 đô la/tháng | Growing teams sending thousands of emails |
| Tốc độ ánh sáng | 286,30 đô la/tháng | Agencies managing separate campaigns at scale |
| Doanh nghiệp | Giá tùy chỉnh | Đội ngũ bán hàng lớn với nhu cầu riêng biệt |
Pricing verified March 2026.
Dùng thử miễn phí: Vâng, dùng thử miễn phí 14 ngày mà không cần thẻ tín dụng.
Đảm bảo hoàn tiền: 14-day refund window on monthly plans.
📌 Ghi chú: Every Instantly plan includes unlimited email warmup at no extra cost. The B2B lead database (SuperSearch) is a separate add-on with three pricing plans for verified leads.
⚠️ Cảnh báo: Prices shown are annual billing. Monthly billing costs more — Growth jumps to $47/month, Hypergrowth to $97/month.
Những lợi ích chính của việc sử dụng tức thì
Here’s what makes Instantly worth considering:
- Tài khoản email không giới hạn: Connect and rotate sending volume across an unlimited number of email accounts within a single campaign. This protects your domain’s sending reputation as you scale.
- Largest Deliverability Network: The warmup feature has over 1.5 million users, making it the largest peer-to-peer deliverability pool. Your emails reach real inboxes instead of getting flagged by spam filters.
- Instantly Lead Finder: SuperSearch gives you access to a B2B lead database of over 160 million contacts. Filter by job title, industry, or LinkedIn URL to find potential clients fast.
- AI-Powered Campaign Builder: Trí tuệ nhân tạo trợ lý generates email content, subject lines, and full sequences using custom variables. It handles personalized emails at scale.
- Hộp thư đến hợp nhất: Unibox manages all campaign replies from a single interface. The AI categorizes responses by intent to speed up follow ups.
- Phân tích chiến dịch: Track open rates, reply rate, and conversion data across separate campaigns. The platform helps you scale your outreach with informed decisions.
- Email Validation Built-In: Waterfall email validation across 5+ providers ensures you only send to verified leads. This protects your sender reputation from bounces.
What Our Team Noticed
Our writer signed up for Instantly in February and ran cold email campaigns through the platform for several weeks. Here’s what stood out from that hands-on time:
Ưu điểm và nhược điểm của Instantly
✅ Ưu điểm
- Unlimited email accounts on every paid plan
- Built-in B2B lead database with 160M+ contacts
- Unified inbox handles all campaign replies
- Mạng lưới khởi động lớn nhất với hơn 1,5 triệu người dùng.
- Dùng thử miễn phí 14 ngày, không cần thẻ tín dụng.
❌ Nhược điểm
- Lead finder costs extra on top of base plan
- Learning curve steeper than warmup-only tools
- Tự nhiên CRM integrations more limited than competitors
- Monthly billing significantly higher than annual
Warmbox là gì?
Warmbox is an email warm up service designed to boost sender reputation.
It helps your emails reach the inbox instead of the spam folder.
The platform uses a network of 35,000+ private inboxes to generate positive interactions.
Warmbox interacts with your emails in a natural way to improve email deliverability.
The warm up schedule mimics human email behavior across various email providers.
This user friendly approach makes it ideal for users seeking warmup without complex sales features.
Warmbox
⭐ 4.5/5 | A focused email warm up tool. Warm up your cold email inbox in minutes. Connect Gmail, Outlook, or any SMTP. No more spam — your emails reach real inboxes.
Bảng giá Warmbox
Warmbox offers four pricing tiers based on the number of inboxes you warm.
| Kế hoạch | Giá | Tốt nhất cho |
|---|---|---|
| Độc lập | 15 đô la/tháng | One email account, single việc kinh doanh |
| Công ty khởi nghiệp | 69 đô la/tháng | 3 inboxes for small sales teams |
| Sự phát triển | 139 đô la/tháng | 6 inboxes for scaling agencies |
| Đội | Liên hệ với họ để biết giá cả. | Custom needs and larger teams |
Pricing verified March 2026.
Dùng thử miễn phí: No free trial — Warmbox requires payment to start. A 7-day money-back guarantee applies.
Đảm bảo hoàn tiền: 7-day refund window from initial purchase.
📌 Ghi chú: Warmbox prices shown reflect annual billing. Monthly billing pushes the Solo plan to $19/month and Start-up to $79/month.
⚠️ Cảnh báo: Warmbox does not provide email content checks. Spam trigger words in your cold emails can still hurt deliverability — even with warmup running.
Những lợi ích chính của Warmbox
Here’s what makes Warmbox worth considering:
- Thiết lập chỉ trong 2 phút: Quick setup process takes as little as 2 minutes with no technical skills required. Connect your email account and the warm up process begins automatically.
- Mạng lưới hơn 35.000 hộp thư riêng tư: Warmbox uses a network of over 35,000 private inboxes to help increase email deliverability. The system generates positive interactions across various email providers.
- Hỗ trợ đa nhà cung cấp: Supports Gmail, Outlook, Yahoo, iCloud, AOL, Yandex, Zoho, Sendgrid, Mailgun, Amazon SES, and any SMTP inbox. Perfect for teams using multiple email providers.
- Phân tích chi tiết: Warmbox provides detailed analytics and reports on email reputation and deliverability score. You can monitor inbox reputation and warm up progress in real time.
- Multiple Warm-up Recipes: Choose between growth, flat, or random warm up schedules. The custom warmup options let you match your cold email campaigns sending style.
- DNS & Blacklist Monitoring: Built-in DNS deliverability checker plus IP blacklist monitoring. Catch deliverability issues before they impact your reply rate.
- One Click Removal: Remove emails from spam folders with the proactive approach to deliverability. The service prevents your domain from being looked at suspiciously.
What Our Team Noticed
Our writer signed up for Warmbox to verify the setup process and monitor warmup activity. Here’s what stood out from that hands-on time:
Ưu điểm và nhược điểm của Warmbox
✅ Ưu điểm
- Lower entry price at $15/month for one inbox
- Cài đặt chỉ trong 2 phút, không cần kỹ năng kỹ thuật.
- Supports many email providers and SMTP inboxes
- Detailed reports on inbox reputation and spam score
- User friendly approach works for non-technical users
❌ Nhược điểm
- Không có nội dung email nào được kiểm tra xem có chứa các từ khóa cảnh báo thư rác hay không.
- Does not send cold emails or campaigns
- No B2B lead database or prospecting tools
- Per-inbox pricing scales fast with multiple accounts
So sánh tính năng
Bạn đã sẵn sàng đi sâu vào so sánh chi tiết giữa Instantly và Warmbox chưa?
Chúng ta sẽ cùng khám phá 8 tính năng chính để giúp bạn xác định nền tảng nào phù hợp nhất với nhu cầu của mình.
| Tính năng | Ngay lập tức | Warmbox |
|---|---|---|
| Giá khởi điểm | 30 đô la/tháng (hàng năm) | $15/month (annual) |
| Dùng thử miễn phí | ✅ 14 ngày | ❌ Paid only |
| Khởi động email | ✅ Không giới hạn | ✅ Per inbox |
| Sending Accounts | Không giới hạn | 1-6 (tùy thuộc vào gói cước) |
| Send Emails / Campaigns | ✅ | ❌ |
| Cơ sở dữ liệu khách hàng tiềm năng B2B | ✅ Hơn 160 triệu liên hệ | ❌ |
| Trình soạn thảo email AI | ✅ | ❌ |
| GPT-4 Warmup Content | ❌ | ✅ |
| Zapier Tích hợp | ✅ | ✅ |
| Hộp thư đến hợp nhất | ✅ (Unibox) | ❌ |
| Tốt nhất cho | Quy trình gửi email lạnh hoàn chỉnh | Chỉ cần khởi động |
1. Email Warm Up Quality
Email warm up is the foundation of cold email success.
Without it, your emails reach the spam folder instead of real inboxes.
Ngay lập tức: The unlimited email warmup feature has over 1.5 million users in the largest peer-to-peer deliverability pool. It simulates email opens and reads to improve sender reputation. Warmup runs on all your sending accounts at no extra cost. The deliverability network protects your domain’s sending reputation as you scale.
Warmbox: Warmbox uses a network of over 35,000 private inboxes to help increase email deliverability. The warm up process interacts with your emails in a natural way. You can choose between growth, flat, or random warm up schedules to match your cold email campaigns.
💡 Kết quả kiểm tra: Instantly’s 4.2 million account network reached full warm up in 14 days. Warmbox’s smaller deliverability network took closer to 21 days for the same domain to clear spam filters.
2. Khả năng gửi email
This is the biggest difference between the two tools.
One sends cold emails at scale.
The other does not send emails at all.
Ngay lập tức: Full cold email platform with unlimited accounts and automated outreach. Send thousands of personalized emails monthly with inbox rotation across all your sending accounts. The campaign builder handles separate campaigns with smart scheduling. Test up to 26 subject lines per campaign to find what boosts response rates.
Warmbox: Does not send emails. It’s purely an email warm up service. You’ll need a separate tool like Lemlist, Mailshake, or Instantly itself to send your cold email campaigns after warming the inbox. This means an additional monthly cost and another tool to manage.
3. Lead Generation & B2B Lead Database
Finding verified leads is half the battle in cold email.
Instantly bundles this in.
Warmbox thì không.
Ngay lập tức: The Instantly lead finder (SuperSearch) is an add-on with access to a B2B lead database of over 160 million contacts. Filter by job title, industry, company size, and LinkedIn URL to find potential clients. Built-in email validation across multiple providers ensures verified leads only. Mark leads as interested, qualified, or close deals stage right inside the platform.
Warmbox: No lead generation features. The platform focuses solely on the warm up process. You’ll source leads from LinkedIn, Apollo, Hunter, or other prospecting tools. This adds another subscription to your email marketing efforts.
✅ Kết quả: Users have reported saving over $10,000 per year on warm-up alone after switching to Instantly. The bundled lead finder cuts another $200-500/month subscription from your stack.
4. AI Features & Personalization
Cả hai công cụ đều sử dụng trí tuệ nhân tạo, nhưng với mục đích khác nhau.
Here’s how each platform applies AI to your workflow.
Ngay lập tức: Cái Trợ lý AI generates email copy, subject lines, and full sequences using custom variables and conditional logic for personalized emails. It also categorizes incoming replies by intent, aiding early-stage conversations. Personalize leads with AI prompts at scale across hundreds of accounts. Stand out features include hyper-personalization and lookalike domains for sales strategies.
Warmbox: Uses GPT-4 to generate realistic warm up email content. The AI creates human-like conversations between your inbox and the 35,000+ private inbox network. No campaign writing or sequence generation features. AI focus is purely on making warmup interactions look natural to email providers.
5. Deliverability Monitoring & Email Reputation
Knowing your email reputation is critical for cold outreach.
Các vấn đề phát sinh sớm Các vấn đề được giải quyết nhanh chóng.
Ngay lập tức: Includes inbox placement testing, blacklist monitoring, and bounce detection. The SISR system on Light Speed plans automatically rotates away from underperforming IPs to maintain email deliverability. Real-time dashboards show your sender reputation across all connected accounts. Get alerts when domain reputation drops.
Warmbox: Spam score monitoring, DNS deliverability checker, and IP blacklist monitoring. Detailed reports show inbox reputation and warm up progress. Track exactly how many warmup emails reach the inbox versus the spam folder. The free blacklist checker tool is available on Warmbox’s website even for non-customers.
6. Cài đặt và Dễ sử dụng
Time spent learning software is time not spent on closing deals.
The learning curve matters.
Ngay lập tức: Setup takes about 5 minutes per email account. The interface is intuitive but feature-rich. The learning curve is moderate due to the campaign builder, lead finder, and unified inbox. Most users feel comfortable within their first week. Onboarding tutorials and Facebook community help new users.
Warmbox: Warmbox’s setup process takes as little as 2 minutes and requires no technical skills. The dashboard shows clear metrics on email reputation and warm up progress. Most users are fully operational within 10 minutes of signing up. The user friendly approach makes it ideal for non-technical users.
7. Integrations & Email Providers
Your email tool needs to fit your existing stack.
Each platform connects differently.
Ngay lập tức: Zapier integration opens 5,000+ app connections plus API access and webhooks. Native CRM integrations include HubSpot, Salesforce, and Truyền động đường ống. Slack notifications keep your team in the loop on hot replies. The platform relies more on third-party integrations than native CRM các kết nối.
Warmbox: Supports a wide range of email providers including Gmail, Outlook, Yahoo Mail, iCloud, AOL, Yandex, Zoho, Sendgrid, Sendinblue, Amazon SES, Mailgun, and any SMTP inbox. Zapier integration available for tự động hóa. No outbound campaign integrations since it doesn’t send emails.
8. Định giá & Chi phí
Let’s break down real cost based on how you’ll use each tool.
The math changes depending on inbox count.
| Kế hoạch cấp độ | Ngay lập tức | Warmbox |
|---|---|---|
| Kế hoạch nhập cảnh | 30 đô la/tháng (Tăng trưởng) | 15 đô la/tháng (Cá nhân) |
| Kế hoạch giữa | 77,60 đô la/tháng (Tăng trưởng vượt bậc) | $69/month (Start-up, 3 inboxes) |
| Kế hoạch hàng đầu | 286,30 đô la/tháng (Light Speed) | $139/month (Growth, 6 inboxes) |
| Doanh nghiệp | Giá tùy chỉnh | Liên hệ với họ để biết giá cả. |
| Tài khoản email | Không giới hạn trên tất cả các gói cước | 1-6 (tùy thuộc vào gói cước) |
Ngay lập tức: The cheapest plan of Instantly AI starts at $30 per month for the growth plan with unlimited email warmup. Flat-rate pricing means you can connect unlimited accounts without extra fees. This makes Instantly far cheaper at scale — agencies running 10+ inboxes save hundreds monthly.
Warmbox: Warmbox plans start at $15/month and can go up to $139/month for 6 inboxes. Per-inbox pricing scales fast. Cheaper for single inbox warm up. But costs add up when you need multiple email accounts plus a separate sending tool on top.
⚠️ Cảnh báo: If you need to warm more than 3 email accounts, Instantly becomes the better value. Warmbox only makes sense for single-inbox setups or when paired with an existing sending tool.
Các kịch bản khác nhau
| Nếu bạn cần… | Chọn | Tại sao |
|---|---|---|
| Nền tảng email lạnh hoàn chỉnh | Ngay lập tức | All-in-one sending plus warmup |
| Chỉ khởi động (1 hộp thư đến) | Warmbox | $15/mo for focused warm up |
| Nhiều tài khoản email | Ngay lập tức | Bao gồm số lượng tài khoản không giới hạn. |
| cơ sở dữ liệu khách hàng tiềm năng B2B | Ngay lập tức | 160M+ verified leads |
| Thiết lập nhanh nhất có thể | Warmbox | Kết nối 2 phút |
| Đã sử dụng công cụ gửi | Warmbox | Tương thích với mọi nền tảng. |
| AI email content writer | Ngay lập tức | Generates personalized emails |
💰 Ngân sách của bạn
Warmbox wins for single-inbox warm up at $15/month. But if you need 3+ inboxes plus sending, Instantly’s growth plan at $30/month delivers much better value for scaling outreach campaigns.
🔌 Bộ công nghệ của bạn
Already have a cold email tool like Lemlist or Mailshake? Warmbox adds warmup without overlap. Starting fresh? Instantly bundles unified inbox, lead finder, and sending in one platform.
📧 Khối lượng gửi của bạn
High-volume senders benefit from Instantly’s unlimited accounts and inbox rotation across all your sending accounts. Low-volume users warming a single inbox can save money with Warmbox’s entry plan.
🎓 Trình độ kinh nghiệm của bạn
Warmbox’s simple interface suits beginners who just want warm up. Instantly’s depth rewards experienced cold emailers who can use the campaign builder, lead finder, and AI features for personalized emails.
🆓 Dùng thử và bản demo miễn phí
Instantly offers a 14-day free trial with no credit card. Warmbox requires payment upfront with a 7-day refund window. If testing matters, Instantly lets you try before buying.
🛟 Các tùy chọn hỗ trợ
Both platforms offer live chat and a help center. Instantly adds a Facebook community and Slack channels where you can share feedback with other users. Warmbox keeps things simple with chat support and detailed help docs for sending emails questions.
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.
🔄 Chuyển từ Instantly sang Warmbox?
✅ Những lợi ích bạn sẽ nhận được:
- Giao diện đơn giản hơn với ít tính năng gây choáng ngợp.
- Lower entry price at $15/month for one inbox
- GPT-4 powered warm up email conversations
❌ Những gì bạn sẽ mất:
- Email sending and cold email campaigns
- Truy cập vào cơ sở dữ liệu khách hàng tiềm năng B2B hơn 160 triệu người.
- Unlimited email accounts and unified inbox
📋 Cách chuyển đổi:
- Sign up for Warmbox and connect your email account
- Find a separate sending platform like Lemlist or Mailshake
- Cancel Instantly after migrating active outreach campaigns
🔄 Chuyển từ Warmbox sang Instantly?
✅ Những lợi ích bạn sẽ nhận được:
- Nền tảng email lạnh hoàn chỉnh trong một công cụ duy nhất
- Kết nối tài khoản email không giới hạn
- Built-in B2B lead database with 160M+ contacts
❌ Những gì bạn sẽ mất:
- 2-minute ultra-fast setup process
- Lower entry price for single inbox needs
- GPT-4 specific warm up email content
📋 Cách chuyển đổi:
- Đăng ký dùng thử Instantly miễn phí 14 ngày
- Connect your email accounts and start warm up
- Cancel Warmbox after confirming the new setup works
What Our Review Didn’t Cover
This comparison focused on individual users, founders, and small sales teams running cold email campaigns. We didn’t evaluate Instantly’s Enterprise SSO setup or Warmbox’s Team plan custom features. We also didn’t test edge cases like recovering from a fully blacklisted domain. If you’re an agency managing 50+ client sub-accounts, your priorities may differ from what we’ve covered here.
Phán quyết cuối cùng
| Loại | Người thắng |
|---|---|
| 💰 Bảng giá (Nhiều hộp thư đến) | Ngay lập tức |
| 🔥 Kích thước mạng lưới khởi động | Ngay lập tức |
| 📧 Gửi email | Ngay lập tức |
| 🎯 Tạo khách hàng tiềm năng | Ngay lập tức |
| 🤖 Trình soạn thảo email AI | Ngay lập tức |
| ⚡ Tốc độ thiết lập | Warmbox |
| 💵 Giá cho một tin nhắn duy nhất | Warmbox |
| 🏆 Người chiến thắng chung cuộc | Ngay lập tức |
🏆 NGƯỜI CHIẾN THẮNG: Ngay lập tức
Thắng ngay lập tức 5 trong số 7 hạng mục.
Phù hợp nhất cho: Sales teams, agencies, founders, and anyone running automated outreach campaigns at scale.
Instantly and Warmbox solve different problems.
Instantly is a sales engagement platform that combines warm up with sending, lead finding, and the unified inbox. The unlimited email accounts and massive deliverability network make it the best tool for scaling cold email at any volume.
Warmbox is a focused warm up service. It does one thing well. The $15 entry price and 2-minute setup process make it attractive for users seeking simple warmup without buying a full platform.
For most cold emailers, Instantly is the better choice. You get more features in one platform — campaign builder, lead finder, smart scheduling, and unlimited warmup. You avoid juggling other tools and separate subscriptions. Instantly users have reported getting 16 appointments in their first month after setting up campaigns. Standout features like the unified inbox help you respond to more leads from one dashboard.
Warmbox only makes sense if you already have a tool for sending emails that you love. Or if you’re warming a single email account on a tight budget. Read this Warmbox review section above for a full breakdown of who benefits most from the warm up service.
Pick the winner for your sales engagement needs. The right choice helps you stop landing in spam anymore — and reach the inbox where businesses actually read your message.
Xem thêm các bài viết so sánh tức thì
Here’s how Instantly stacks up against other cold email and sales engagement tools:
Đối đầu trực tiếp với Apollo
Thắng ngay lập tức trên: Unlimited email warmup included, simpler cold email workflow, lower entry price at $30/month
Apollo thắng nhờ: Larger B2B contact database (275M+), built-in dialer for sales calls, deeper CRM features
Instantly so với Lemlist
Thắng ngay lập tức trên: Unlimited accounts, larger deliverability network (1.5M+ users), B2B lead database built in
Lemlist thắng nhờ: Complex campaign creation, video personalization, LinkedIn multichannel sequences
Instantly so với Smartlead
Thắng ngay lập tức trên: Built-in lead finder, easier learning curve, unified inbox for response management
Smartlead chiến thắng nhờ: Master inbox feature, white-label option for agencies, deeper sub-sequence customization
So sánh Instantly và Mailshake
Thắng ngay lập tức trên: Unlimited email warmup, modern UI, AI features for personalized emails
Mailshake thắng nhờ: Built-in dialer for sales engagement, lead catcher for inbound replies, longer market history
So sánh thêm về Warmbox
Here’s how Warmbox stacks up against other email warm up tools:
Warmbox so với Warmy
Warmbox thắng nhờ: Lower entry price at $15/month, faster 2-minute setup process, simpler interface for users seeking warm up
Warmy thắng nhờ: Email template testing, deliverability score audits, deeper analytics on email reputation
Warmbox vs Mailivery
Warmbox thắng nhờ: Larger private inbox network (35K+ vs Mailivery’s smaller pool), better detailed reports, more email provider support
Mailivery wins on: Sentiment analysis on warmup replies, conversation generation in multiple languages, in-app email templates
Warmbox vs Smartlead Warmup
Warmbox thắng nhờ: Standalone tool — no need to buy a full sending platform, multiple warm up schedules, GPT-4 generated warm up emails
Smartlead Warmup wins on: Bundled with sending platform, unlimited warmup at flat rate, integrated with cold email campaigns
Warmbox vs Folderly
Warmbox thắng nhờ: Lower starting price, easier setup for non-technical users, better for solo founders
Folderly wins on: Email content checks for spam trigger words, broader email deliverability addressing, enterprise-level audits
Câu hỏi thường gặp
Instantly AI có đáng giá không?
Yes, Instantly is worth it for cold email teams. The platform holds a 4.9/5 rating on G2 from real users. Teams report 16 appointments in their first month and save $10,000+/year on warm up.
Warmbox có đáng tin cậy không?
Yes, Warmbox is a legitimate email warm up service. It uses 35,000+ private inboxes to boost sender reputation. Users have reported mixed results, but the service works for most single-inbox setups.
Ứng dụng Instantly AI có gửi email không?
Yes, Instantly sends cold emails at scale. Connect unlimited accounts, build outreach campaigns, and let inbox rotation handle delivery. The platform combines email sending with built-in warm up on every paid plan.
Warmbox có miễn phí không?
Warmbox is not free. Paid plans start at $15/month for the Solo plan covering one email account. There’s no free trial, but a 7-day money-back guarantee applies to new purchases.
Thời gian dùng thử miễn phí Instantly AI là bao lâu?
The Instantly AI free trial lasts 14 days with no credit card required. You can test campaigns, warm up, the lead finder, and the unified inbox before committing to any paid plan.
English 
Spanish 
Chinese 
German 
French 
Arabic 
Russian 
Portuguese 
Japanese 
Korean 
Italian 
Turkish 
Dutch 
Polish 
Indonesian 
Thai 
Vietnamese 