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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
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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.
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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.
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.
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.
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!