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Customer communication has evolved. In B2B, relying on email blasts or sporadic Slack updates isn’t enough anymore. Customers expect timely updates, proactive outreach, and consistency—delivered where they already work.
That’s why we built Thena Broadcasts, a way for teams to send email broadcasts and Slack broadcasts from the same platform. Whether you’re welcoming new customers, announcing features, or running proactive outreach, broadcasts bring everything under one roof.
What is a broadcast email
A broadcast email is a single message sent to many recipients at once. Companies often use it for:
Announcements (product launches, feature updates)
Greetings (welcome messages, onboarding journeys)
Events (invites, reminders)
Status updates (downtime notices, SLA changes)
Broadcast emails are different from drip campaigns or personalized sequences. Instead of being triggered one by one, they go out to a group of people—at the same time.
How free email broadcasts work
Free email broadcasts let you send one message to many recipients at once without paying for a traditional email marketing platform. They’re often included as a feature inside community tools, customer success platforms, or lightweight email software.
Here’s how the process typically works:
Create your message – Write your announcement, update, or reminder in a simple editor. Most free tools support plain text, links, and sometimes basic templates. Signup with Thena for free to try it out today.
Build your audience – Upload a list of recipients or select from existing contacts. Some tools let you segment lists (e.g., “new customers,” “enterprise accounts”), though this is usually limited in free versions.
Choose delivery – Decide whether to send immediately or schedule for later. Free plans may limit scheduling or daily send volumes.
Send & track – Once delivered, you can usually track basics like open rates and link clicks. More advanced analytics (A/B testing, automation, detailed segmentation) are often restricted to paid platforms.
Email broadcast vs broadcast email marketing
Email broadcast: Sending one message to many recipients, usually operational or informational.
Broadcast email marketing: Using broadcast emails for promotional or lead-generation purposes.
Thena focuses on the customer experience side of broadcast emails: proactive updates that build trust, reduce tickets, and strengthen relationships.
Free email broadcast vs paid platforms
There are plenty of tools that let you broadcast emails for free, but most are built for marketing, not for support or success. The problem?
Limited audience targeting
No Slack integration
Complicated email databases
With Thena, you can send free email broadcasts as part of the same platform where you manage tickets, conversations, and accounts.
When free email broadcasts work best
Free email broadcast tools are suitable if your needs are simple, such as:
Onboarding greetings – welcoming new customers with a quick message.
Basic product announcements – sharing a new release or update with all users.
Event reminders – sending invites or confirmations to a small list.
Downtime or SLA updates – alerting customers quickly without complex automation.
For startups or small teams, free tools are a cost-effective way to start communicating at scale.
The limitations of free email broadcast tools
However, most free platforms come with trade-offs that limit long-term value for B2B teams:
Audience caps – restricted number of contacts or sends per month.
Minimal segmentation – hard to target by account type, customer journey stage, or geography.
Lack of integrations – no connection to Slack, CRMs, or ticketing systems.
Surface-level analytics – only basic opens/clicks, without insight into customer engagement.
This often forces teams to either upgrade to expensive marketing software or juggle multiple tools for communication.
Why Thena’s free option is different
Thena’s free email broadcasts are designed for customer operations, not just marketing. That means you can:
Send free email broadcasts and Slack broadcasts from one platform.
Use dynamic lists that auto-update as customer attributes change.
Combine outreach with support and success workflows—all in the same system.
Scale without losing visibility: track opens, clicks, and even Slack reactions.
With Thena, “free” doesn’t mean “limited”—it means starting with everything you need to build trust, reduce support tickets, and keep customers informed across both email and Slack.
How to broadcast email with Thena
Compose your message using the rich editor (text, images, links, templates).
Select your audience—either static lists or dynamic segments that auto-update.
Choose your channel—Slack, email, or both.
Preview to ensure formatting looks right across channels.
Send or schedule delivery.
Track performance in analytics: opens, clicks, reactions, and more.
Slack broadcasts: how they complement email broadcasts
Here’s where Thena is different. You’re not limited to inboxes—you can run Slack broadcasts too.
Slack bulk send to channels: Push one message across multiple customer channels at once.
Slack outreach: Engage your community or customer base directly in Slack, where they’re already active.
Slack + email combo: Write once, send everywhere.
For companies that run Slack communities, broadcasts make it simple to share updates, reminders, or release notes with thousands of members—without manually posting in every channel.
Why broadcasts matter for B2B CX
Proactive beats reactive: Customers shouldn’t file tickets to get updates.
Consistency at scale: Onboarding, product updates, and renewal nudges are no longer hit or miss.One platform, multiple channels: Support, success, and engagement finally live in the same system.
Research shows that proactive communication is one of the biggest drivers of customer trust and loyalty.
Free email broadcasts vs Slack broadcasts
Feature / aspect | Free email broadcasts | Slack broadcasts |
Reach | Delivered to inboxes; good for customers who check email regularly. | Delivered directly inside Slack channels; reaches users where they work. |
Speed of engagement | Opens/clicks may take hours or days. | Instant visibility with real-time reactions and replies. |
Best use cases | Product updates, onboarding emails, downtime notices, compliance alerts. | Feature launches, community engagement, quick reminders, urgent updates. |
Personalization | Limited in free tools; basic name or list segmentation only. | Context-aware: sent to the exact Slack channels where customers already engage. |
Limitations | Send caps, fewer design options, often no integrations. | Needs customers to be on Slack; less effective if they don’t use Slack regularly. |
Thena advantage | Send free email broadcasts alongside Slack broadcasts in one workflow. | Write once, send everywhere—Slack + email combined. |
FAQs about broadcasts
What is email broadcast used for?
Broadcasts are best for reaching many customers at once—product updates, downtime notices, onboarding greetings, or event reminders.
How is broadcast email different from a newsletter?
Newsletters are marketing-driven and recurring. Broadcast emails are timely, operational, and tied to customer success.
Can I broadcast emails for free?
Yes. Thena includes free email broadcast capabilities inside its platform, alongside Slack broadcasts.
How do Slack broadcasts work?
Slack broadcasts let you send one message to multiple customer channels or community members at once.
After sending a Slack mass broadcast to a channel, can I retrieve and pull it back?
Yes. With Thena, you can recall Slack broadcasts—even after sending. (Email broadcasts cannot be recalled once delivered.)
Can I edit audience lists?
Yes. You can create, edit, or delete audiences in one place and preview recipients before sending.
How does a dynamic list work?
Dynamic lists update automatically as customer attributes change. For example, “all enterprise customers in onboarding” stays current without manual work.
What is the difference between email marketing platforms and Thena broadcasts?
Email marketing tools are built for promotions and lead-gen. Thena broadcasts are built for support and success, combining Slack and email inside the same platform where customer operations already live.
What are the best tools for sending bulk messages on Slack?
Most bulk messaging tools for Slack are designed for internal comms. Thena is built specifically for B2B teams that need to communicate with customers at scale, combining Slack broadcasts with email outreach in one platform.
How can I use Slack broadcasting for product updates?
With Thena, you can send a single announcement that reaches all customer Slack channels, plus their inboxes. It’s the fastest way to deliver release notes, feature launches, and roadmap updates without relying on email newsletters alone.
Can I use Thena for internal communication automation in Slack?
While Thena is designed for customer-facing communication, its broadcast capability can also support internal use cases—like reminders, company announcements, or cross-team updates. It’s particularly valuable when you want consistency across multiple Slack channels.
Final thoughts
Broadcasts unify what’s been fragmented for years: email blasts, Slack updates, and proactive customer outreach. Instead of juggling multiple platforms or messy email databases, your team can now:
Send broadcast emails and Slack broadcasts from one place
Save audiences and avoid manual CSV uploads
Automate communication and measure results
For modern B2B teams, this isn’t just efficiency—it’s the new standard for customer engagement.
