Centralized email response management system
One Shared Inbox for All Campaigns and Clients.
View all replies from multiple mailboxes in a master inbox
No need to switch accounts - one login shows everything.
Use this as a shared inbox tool across teams or clients.
Tag replies automatically or manually by sentiment or context.
Smart filters & bulk actions for campaign visibility
Review and Act on Replies Faster With Custom Views.
Filter conversations by sender, tag, reply type, campaign, or time.
Apply bulk actions like tag, assign, archive, reply, or forward.
Prioritize hot leads instantly with intent-based filters.
Handle 1000s of replies daily without chaos.
Automated email replies and trigger-based sequences
Respond with Automated Email Replies - No Manual Work.
Detect and tag OOO, bounce, and unsubscribe replies automatically.
Trigger custom workflows when keywords like “interested” appear.
Route leads into follow-up sequences or booking calendars.
Automate first-touch responses or re-engagement based on behavior.
Email management system built for scale
Work across clients in a single agency with client dashboards.
Assign replies to specific teammates for quick resolution.
Add internal comments for lead context and handoffs.
Collaborate in one place instead of scattered inboxes.
Fully white-labeled for agency client dashboard workflows.
Email reporting dashboard with CRM and slack integrations
Track Performance, Sync Data, and Improve Campaigns .
Push replies into your CRM with full thread context.
Get real-time Slack alerts when leads respond or show interest.
Sync data with Google Sheets automatically.
Measure reply volume, bounce rate, OOO trends, and interest levels.
Let’s build your intelligent enterprise outreach engine
Get AI-native operating system for your enterprise sales team
Book a Demo.svg)
.svg)
What our customers say
Founder, StackOptimise
Smartlead's combination of automation, unlimited inboxes, and easy campaign management has completely transformed how we run cold email campaigns.
.jpg)
Founder, Cold Email Hackers
We have about 15 companies and we use Smartlead for all of them.
Founder, DutchSave Media
One of the things I love about using Smartlead is the deliverability feature. If they landed in the bounce or spam folders, we could resolve this quickly.
Co-Founder, Growth Today
I want to continue to use Smartlead to make operations more seamless - the plan is to bring more clients here and build more SOPs.
Founder, FueltoFly
Smartlead listens to the agencies and customers and builds according to what people want, that has really made things easier for us.
Founder, OutboundSync
We build an infrastructure product, and OutboundSync communicates with Smartlead itself. I love the webhook and API. They're really well done and keep getting better.
Founder, Axoleads
With SmartDelivery, you can put all of that in the hands of the tool. It ensures your emails land in inboxes, and by running a simple test, you can see if you're hitting the mark.
Founder, Claygen
Deliverability is the cornerstone of cold email outreach. You could have the best email copy in the world, but if no one is seeing it, it's useless. I really love the feature where you can actually give client accesses to your clients.
Founder, Phyros
I'm amazed at the response time of Smartlead's customer support.
Head of Growth, EraB2B
I didn't want a tool built by a marketing team with flashy features that didn't solve real problems. I wanted a platform built by experts in email deliverability, and Smartlead checked all the boxes. Smartlead isn't just a tool for us, it's a part of our infrastructure.
Founder, Lever Growth
We focus on having consistent email deliverability for us and our clients, and Smartlead has consistently helped us achieve that.
Founder, PLNITUDE
Client Access and white-labeling have been a game-changer, saving us countless hours. With Smartlead, I'm happy with everything, but then I check their Slack community, and there's a new feature that just dropped!
CEO, Agile B2B Sales
SmartDelivery and SmartServers have been instrumental in helping us navigate the ever-changing deliverability landscape. The platform's ability to adapt to deliverability changes and provide real-time insights has been critical to our success.
Founder, frontBrick
Outbound isn't dead; it's just that the bar is higher now. Smartlead allowed me to unify advanced deliverability with multi-channel sequences, and that was a game-changer.
CEO, OneThousandPieces
From the beginning, Smartlead enabled us to build client access. Everything has been driven around making people like us revenue. I've seen the evolution of the tool, and it perfectly aligns with how I evolved myself in my business.
Co-Founder, The Playbook Agency
If you're a founder or a Sales VP looking to book meetings at scale with automation, Smartlead is your best bet.
Founder, Leadgrove.io
Using Smartlead's APIs has been a huge, huge game changer in our business. If you're an agency serious about scaling and signing new clients, Smartlead is the reliable partner you need.
Founder, RevGen Labs
The accessible API was the number one feature that allowed us to build RevReply and automate everything - from response handling to custom reporting.
Founder, Cleverviral
We needed more agency-focused support, and since then, we haven't looked back.
Founder, Cotide
We integrated Smartlead for the whole sending part... we have a complete view.
Co-Founder, The Growth DNA
The decision to incorporate Smartlead was a no-brainer. Smartlead has given us the speed and flexibility to meet our clients' demands quickly.
Founder, Unlock Management
50% of the business is made in Smartlead. Everyone that's doing outbound is using Smartlead. Emails don't go to spam, so why should we change it? In just 30 seconds, you can do everything. Being so simple and so effective at the same time, I think it's really important.
Founder, Brokr Leads
The ability to manage multiple email accounts, track every lead, and enjoy high reply rates through Smartlead has fundamentally changed our business.
Co-Founder, Five Element
Smartlead is an absolute game-changer! With its exceptional features and support, I've experienced remarkable success. I would rate it 10 out of 10 for satisfaction. Smartlead enabled us to save valuable time and resources, leading to increased revenue and improved profitability.
Founder, First LLC
The best one is actually real sending data - you have real hard data, which is, this actually bounced for three other users. The product is solid. I don't feel like I need that many features because the basics are covered.
VP of Operations, KeyOutreach
Intuitive. Game-Changing. POWERFUL. Analytics, spintax, A/B testing, quick personalization. This is a game changer.
Co-Founder, Cymate
I do not want to switch to another software. Pick a solution you trust, stick with it, and keep refining your copy.
CMO, Avalanche Capital
Managing large volumes of emails through multiple inboxes used to be a logistical nightmare. With Smartlead, the process is seamless. We book thousands of discovery calls through cold emails. These campaigns are generating leads at a scale we never thought possible.
Founder, Growth Engine X
We came for the unlimited inboxes, and we stayed for the API. 1.5M cold emails/month, 7,767+ inboxes managed.
Head of Community & Ecosystem, TxtCart
You cannot replace having 10,000 touches with potential clients. When you have that much distribution and reach, you really start to see incredible results. The simplicity of Smartlead made all the difference. It doesn't require you to be a technical wizard.
Founder, Hyperke
Smartlead has been a game-changer for us. It increased our appointment volume, improved ease of use, and offered valuable features. 80% increase in appointments/month, peak of 276 appointments in a single month.
Founder, Kinetyca
Smartlead has been our cold email backbone from day one. The platform evolves constantly, keeping pace with how deliverability and personalization need to work today. 21% overall reply rate, $175K in 4 months for multiple B2B clients.
Founder, Reachflow
Smartlead is centered around deliverability and constantly evolving. Their API is not like any other platform. Smartlead covers all our needs. The focus on core features like deliverability and API integration is unmatched.
CEO, Halfwarm
Our approach to crafting conversational emails led to reply rates that many of my peers thought were unattainable.
Founder, Experiment5m
Smartlead's automation and deliverability features transformed how we run outbound campaigns. This platform has been a game changer for our agency.
Founder, Practical Prospecting
Every cold email tool can automate a sequence, but Smartlead focuses on what truly matters: deliverability and simplicity. Since I started using Smartlead, they seem to come out with new features every month. I've never reached that number in another tool. (referring to 500+ meetings)
Co-Founder, Pitchlane
With Smartlead, Pitchlane's B2B outreach has taken a significant leap forward. Our response rate skyrocketed to 16%. On a scale of 1 to 10, I would give it a solid 100.
Founder, Cold Outreach Systems
Smartlead has helped us break records month after month for booking meetings and managing inboxes. It's super easy to scale without losing quality. We tried other tools, but they were clunky and hard for clients and our team. Smartlead's intuitive design made it the obvious choice.
Founder, Leadodo
Smartlead syncs effortlessly with Leadodo's lead database, making the job much easier for us. Smartlead's support team works 24/7 to help you with any issue, which is a welcome change from other support services.
Co-Founder & COO, Trigify
When we started our agency, we started with Smartlead on cold email, and we got that from zero to 30,000 a month in six months.
CEO, Rock Solid Lead Generation
Smartlead is absolutely amazing! The software is easy to understand. I am not a techie but directly understand everything and if you really have a question the team always helps instantly.
Founder, 10x AI Advisors
SmartDelivery has been the 100% reason we were able to achieve the numbers for our campaigns. Smartlead is the foundation of our cold email success. If Smartlead evolves into agentic AI integration, it will redefine the future of outbound.
CEO, The Pipeline Inc.
Smartlead improved our deliverability and gave us the tools to turn cold emails into conversations. The support team's expertise was the cherry on top.
Founder, Spring Drive
My agency, for all of our clients as well as for our own campaigns, relies on Smartlead. It has truly become a cornerstone of our growth. Our reply rates are approximately 500% higher compared to those we experienced with legacy tools.
Co-Founder & CEO, Danish Lead Co.
We run our entire business on your platform. We're sending plus 500,000 emails a month right now. The fact that we're able to do that and still primarily land in the inbox, all of that wouldn't have been possible without Smartlead.
Founder, Sales Automation Systems
AI will beat me at every level, so I learned how to use it instead of competing against it. 130% company growth in one year, 62% positive reply rate, $8.19M in staffing sales.
Advisor, Trailway Growth
Smartlead, without a doubt, in my opinion, is the best tool in the market for cold email outreach. We're barely scratching the surface of what's possible. It's a foundation for agency growth. $700K+ ARR closed, 33% positive reply rate on 13,000-prospect campaign.
Founder, B2B Boosted
We're probably averaging about 140 meetings per month, and most of them are coming from emails.
CEO, LearnEmail.com & MailGenius
With Smartlead, I was able to generate between 6,000 and 8,000 opt-ins and over 15,000 replies from cold email campaigns. Smartlead has excellent customer support, and Vaibhav is one of the best leaders I've ever seen. 620 replies in a single day with just 178 mailboxes. I scaled up to 8,800 emails a day and 450,000 emails a month.
Co-Founder, letstrike
I started in cold email with a Google Sheet hack. Now we run everything from a single platform that handles hundreds of clients, multiple domains, advanced analytics.
Founder, EmailAnalytics
When we started using it, we were pretty happy with the results and the ease of use. Once we got used to it, there was really not been any reason to move away from it. Smartlead enables us to use custom domains for tracking, which improves deliverability.
Partner & COO, Done For You Meetings
Smartlead has been a game-changer for us. The API and automation features have allowed us to streamline our processes and scale our campaigns without adding more team members.
Founder, Growth Engine X
We came for the unlimited inboxes, and we stayed for the API. 1.5M cold emails/month, 7,767+ inboxes managed.
Head of Community & Ecosystem, TxtCart
You cannot replace having 10,000 touches with potential clients. When you have that much distribution and reach, you really start to see incredible results. The simplicity of Smartlead made all the difference. It doesn't require you to be a technical wizard.
Founder, Hyperke
Smartlead has been a game-changer for us. It increased our appointment volume, improved ease of use, and offered valuable features. 80% increase in appointments/month, peak of 276 appointments in a single month.
Founder, Kinetyca
Smartlead has been our cold email backbone from day one. The platform evolves constantly, keeping pace with how deliverability and personalization need to work today. 21% overall reply rate, $175K in 4 months for multiple B2B clients.
Founder, Reachflow
Smartlead is centered around deliverability and constantly evolving. Their API is not like any other platform. Smartlead covers all our needs. The focus on core features like deliverability and API integration is unmatched.
CEO, Halfwarm
Our approach to crafting conversational emails led to reply rates that many of my peers thought were unattainable.
Founder, Experiment5m
Smartlead's automation and deliverability features transformed how we run outbound campaigns. This platform has been a game changer for our agency.
Founder, Practical Prospecting
Every cold email tool can automate a sequence, but Smartlead focuses on what truly matters: deliverability and simplicity. Since I started using Smartlead, they seem to come out with new features every month. I've never reached that number in another tool. (referring to 500+ meetings)
Co-Founder, Pitchlane
With Smartlead, Pitchlane's B2B outreach has taken a significant leap forward. Our response rate skyrocketed to 16%. On a scale of 1 to 10, I would give it a solid 100.
Founder, Cold Outreach Systems
Smartlead has helped us break records month after month for booking meetings and managing inboxes. It's super easy to scale without losing quality. We tried other tools, but they were clunky and hard for clients and our team. Smartlead's intuitive design made it the obvious choice.
Founder, Leadodo
Smartlead syncs effortlessly with Leadodo's lead database, making the job much easier for us. Smartlead's support team works 24/7 to help you with any issue, which is a welcome change from other support services.
Co-Founder & COO, Trigify
When we started our agency, we started with Smartlead on cold email, and we got that from zero to 30,000 a month in six months.
CEO, Rock Solid Lead Generation
Smartlead is absolutely amazing! The software is easy to understand. I am not a techie but directly understand everything and if you really have a question the team always helps instantly.
Founder, 10x AI Advisors
SmartDelivery has been the 100% reason we were able to achieve the numbers for our campaigns. Smartlead is the foundation of our cold email success. If Smartlead evolves into agentic AI integration, it will redefine the future of outbound.
CEO, The Pipeline Inc.
Smartlead improved our deliverability and gave us the tools to turn cold emails into conversations. The support team's expertise was the cherry on top.
Founder, Spring Drive
My agency, for all of our clients as well as for our own campaigns, relies on Smartlead. It has truly become a cornerstone of our growth. Our reply rates are approximately 500% higher compared to those we experienced with legacy tools.
Co-Founder & CEO, Danish Lead Co.
We run our entire business on your platform. We're sending plus 500,000 emails a month right now. The fact that we're able to do that and still primarily land in the inbox, all of that wouldn't have been possible without Smartlead.
Founder, Sales Automation Systems
AI will beat me at every level, so I learned how to use it instead of competing against it. 130% company growth in one year, 62% positive reply rate, $8.19M in staffing sales.
Advisor, Trailway Growth
Smartlead, without a doubt, in my opinion, is the best tool in the market for cold email outreach. We're barely scratching the surface of what's possible. It's a foundation for agency growth. $700K+ ARR closed, 33% positive reply rate on 13,000-prospect campaign.
Founder, B2B Boosted
We're probably averaging about 140 meetings per month, and most of them are coming from emails.
CEO, LearnEmail.com & MailGenius
With Smartlead, I was able to generate between 6,000 and 8,000 opt-ins and over 15,000 replies from cold email campaigns. Smartlead has excellent customer support, and Vaibhav is one of the best leaders I've ever seen. 620 replies in a single day with just 178 mailboxes. I scaled up to 8,800 emails a day and 450,000 emails a month.
Co-Founder, letstrike
I started in cold email with a Google Sheet hack. Now we run everything from a single platform that handles hundreds of clients, multiple domains, advanced analytics.
Founder, EmailAnalytics
When we started using it, we were pretty happy with the results and the ease of use. Once we got used to it, there was really not been any reason to move away from it. Smartlead enables us to use custom domains for tracking, which improves deliverability.
Partner & COO, Done For You Meetings
Smartlead has been a game-changer for us. The API and automation features have allowed us to streamline our processes and scale our campaigns without adding more team members.
Co-Founder, letstrike
We've grown on zero capital, zero marketing, purely cold emailing - and that's the story we love to tell. The best approach is no approach if you can't handle domain meltdown. The second best is something like Smartlead that's built from the ground up for deliverability at scale.
Founder, Fenixtal
Smartlead's white-labeling and automation let us punch above our weight. The 12M euros sales potential? That's what happens when you combine human creativity with Smartlead's precision.
Co-Founder, Digital Creativs
Nine out of 10. Ninety percent of our clients are on Smartlead unless they come in with an existing setup. That's the default.
Co-Founder, BuildingReach
At the end of the day, you have to take a bet on one tool or another. It was a no-brainer taking that bet on Smartlead. We had to even turn down the volume of our marketing campaigns - Smartlead was capable of driving more volume than our sales team was able to fulfill.
Founder & MD, Prospectiv
Since starting the business in January of this year, we've already generated $200K in sales exclusively from cold email. Smartlead has been central to our operations and has exceeded our expectations.
Founder, Growthlynk
There's so much stuff built on top of it. I would be dead if I had to rebuild it with another tool. I can manage hundreds of senders easily. I can send hundreds of thousands of emails.
Founder, Corebits
The platform's HubSpot integration, real-time Slack updates, and advanced campaign customization have been game changers for our business and our clients'.
Founder, Apex Ascension
From day one, we've never used anything else.
Founder, Leadmoves
Since using Smartlead, my clients have added millions in pipeline revenue, closed six-figure deals, and gotten 38 new customers in a single month.
Founder, Virtus Medium
Everything under one roof: I can see campaigns, leads, and domain status without leaving the platform. Warm-up that I can forget about: The system ramps send volume on its own, which frees my time.
Founder & CEO, Wind Growth
If you're a big automation enthusiast like me, there are no other tools on the market that allow you to 100% automate your business as Smartlead does. Smartlead easily saves me about 40 hours per week.
Founder, AvoraGrowth
The way you can create client sub-accounts on Smartlead is like no other tool out there. They're super simple, super cheap. Everything at the moment that you have in Smartlead is amazing. There's nothing really that needs to be changed specifically for our use case.
Co-Founder, The Kiln
I think people who are at the forefront of the correct tech tools like Smartlead and Clay are going to be the runaway leaders. We've had several clients that we've generated millions of dollars for, just using Smartlead campaigns.
Founder, Leveraged Outbound
My entire business is pretty much built upon Smartlead. Without it, I wouldn't have any business. Smartlead helped us save 80% of our time, book 20-30 monthly meetings, and close six-figure deals for our clients.
Founder & CEO, Soteria Media
The APIs and automations you can do with Smartlead are out of this world and it helps me run my business very smoothly.
Founder, FinestGC
Using Smartlead has been a total game-changer and has been one of the primary drivers in our ability to generate over $12M in the pipeline for our clients last year. The Master Inbox alone has saved us a considerable amount of time, the custom tagging system and subsequences save us at least 2 hours a day.
Account Executive
I like how easy it is to launch a campaign with Smartlead and how effective it is at delivering emails. It allows me to use multiple inboxes that it creates to safely send emails in bulk. The initial setup was very easy, and this contributes to the overall user-friendliness of Smartlead.
Co-Founder, Digital Creativs
The platform and features continue to be updated and improved. Strong founder who cares about what users want to see and an amazing support team. The office hours on various topics such as email deliverability with the experts is nothing like I've seen for other SaaS products and the Smartlead Slack community is a cherry on top.
Member, Lambda Group
I love the community and their Slack channel. I'm also thrilled with the AI inbox manager after the latest update because it saves us a lot of time, eliminating the need for VAs to manage inbox tasks. The setup was quite easy and they provide really extensive documentation and a very helpful community.
Founder, Hyperke
I really appreciate the amazing customer support from Smartlead. Nobody even comes close in comparison. The founder Vaibhav is super helpful and hands-on with everything. The tool itself is reliable and technically sound. Plus, their APIs work well, which is another big plus for me.
VP of Accounts, A-SALES
A comprehensive email outreach platform that converts cold emails into consistent qualified sales meetings for us, and our clients. It helps scale outreach with unlimited mailboxes, unlimited warmups, a limitless multi-channel infrastructure, and a unified inbox so we can manage our entire revenue cycle in one place.
Founder, Reachflow
Smartlead is centered around deliverability and constantly evolving. Their API is not like any other platform. Smartlead covers all our needs. The focus on core features like deliverability and API integration is unmatched.
Co-Founder & CEO, Danish Lead Co.
Smartlead is the backbone of our cold email infrastructure. We run our entire business on your platform. We're sending plus 500,000 emails a month right now. The fact that we're able to do that and still primarily land in the inbox, all of that wouldn't have been possible without Smartlead.
Co-Founder, The Growth DNA
The decision to incorporate Smartlead was a no-brainer. Smartlead has given us the speed and flexibility to meet our clients' demands quickly.
CEO, OneThousandPieces
I use Smartlead.ai every day across all my client accounts and it's become absolutely indispensable! From the beginning, Smartlead enabled us to build client access. Everything has been driven around making people like us revenue.
Chief Executive Officer, Infoxify
It is a seasoned/advanced tool to send cold emails to your prospects. Many great features are there to improve the deliverability. Customer support is very nice, though it may take a while for you to get answer (It's not prompt response unless you are on their higher tier plan).
Founder, PLNITUDE
Game changing tool for my agency, helping us generate 6-figures+ for our lead generation clients! Client Access and white-labeling have been a game-changer, saving us countless hours. With Smartlead, I'm happy with everything, but then I check their Slack community, and there's a new feature that just dropped!
Associate Manager - Marketing
I use Smartlead for cold outreach, and it really simplifies things for me. I love how it handles the email warming up automatically and delivers emails without harming my domains. It's easy to use, and anyone can start with it, which is great. I also appreciate the option to set specific intervals between each email sent, as it just works right.
Powerful automated workflows that drive sales.
Frequently asked questions
What is the master inbox?
The master inbox is your one-stop solution where you can manage all your messages from different email accounts from all campaigns in one place. Instead of hopping between accounts, you get everything neatly organized in a single dashboard. It's super handy for staying on top of your emails without the hassle of switching back and forth between accounts. Plus, with features like real-time email replies, enhanced lead management tools, and customizable views, you have everything you need to streamline your email workflow and boost productivity.
How do real-time email replies work in Master Inbox 3.0?
Real-time email replies in Master Inbox 3.0 ensure you receive lead responses instantly. No more waiting around for replies; they appear in your inbox within seconds. This feature offers a complete view of customer messages across all your accounts, allowing you to engage with leads promptly and efficiently. It's a game-changer for cold email campaigns, ensuring you stay ahead and never miss a beat.
When will the Untracked Replies feature be available?
The Untracked Replies feature will launch in the last week of February, 2024. This exciting addition to Master Inbox 3.0 will allow users to track all responses, even those without the usual tags or identifiers.
Are there any restrictions on the number of custom views based on the plan?
Yes, there are restrictions on the number of custom views based on the plan you choose. Users on the Base and Popular plans can create up to three custom views. And users on the Pro and Custom plans have the flexibility to add more views according to their needs.
Can you explain how adding attachments directly to the master inbox impacts email conversations?
Adding attachments directly to the master inbox simplifies email conversations. Now, users can seamlessly exchange files like documents, images, and videos within their inbox, eliminating the need to switch between applications. This feature saves time, enhances organization, and boosts productivity by ensuring all important files are easily accessible when needed.
What keyboard shortcuts are available in Master Inbox 3.0, and how do they streamline tasks?
In Master Inbox 3.0, you can enhance your productivity with keyboard shortcuts that make managing your email campaigns easy. You can perform various actions, from assigning leads to blocking them without leaving your keyboard. You can automatically mark a lead as out of office just by pressing "O + L." Likewise, you can pause or resume a lead with other shortcuts. Whether you're replacing a lead, assigning categories, assigning tasks, or pushing leads to another campaign, these shortcuts streamline your workflow and save you valuable time.
Could you elaborate on the Sidebar feature and its organization of the master inbox?
The Sidebar feature in Master Inbox 3.0 makes inbox management efficient and organized. It offers easy navigation with categories like Inbox, Sent, Important, Snoozed, Reminders, Scheduled, and Archived. Each section serves a specific purpose: Inbox for incoming messages, Sent for replies sent, Important for marking key leads, Snoozed for temporary hold, Reminders for follow-ups, Scheduled for scheduled emails, and Archived for storing leads.
Are there any planned future updates or features beyond Master Inbox 3.0?
While Master Inbox 3.0 is a significant step forward, Smartlead is committed to continuous improvement. We're actively gathering user feedback and exploring enhancements to further streamline workflow management and boost productivity. Stay tuned for upcoming updates as we strive to deliver even better solutions for our users!
