Live alerts

Know first when a delivery doesn't go out.

Get notified the moment a CRM send fails, before anyone else does.

Works with Klaviyo, HubSpot, Braze, Shopify, Mailchimp, Salesforce Marketing Cloud, Sendgrid, and any platform that sends email.

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Optional wallet pass shows journey health on your lock screen.

Silent. Green. You ignore it.
Red. Pushed to your lock screen. One glance.

How the Card works.

Lives in your wallet

No app install. No new inbox. Apple Wallet on iPhone, Google Wallet on Android coming next.

Silent when journeys are sending

The Card stays green. You ignore it. That's the point.

Pushes to your lock screen when something breaks

The Card flips red. One push, one glance, one motion. Triage stays in whatever stack your team already uses.

See it in action

Green to red, in the time it takes to look at your phone.

An order confirmation email stops sending. You see it before your customers start complaining.

No app to open. No dashboard to check. The Card is the alert.

Try it on your iPhone Start free

The two questions CRM teams ask too late

"The head of marketing found out from a customer." "How would I even know if this stopped working?"

If either has been said in a meeting, you don't have a way to know when an email step drops. Telltide is the production status light that catches it before anyone else does.

Your ESP shows what it sent. Telltide shows what actually landed.

Most email platforms can tell you a message was dispatched or accepted for delivery. That does not tell you whether the right email reached the monitored inbox, arrived on time, arrived only once, or arrived with broken content. That gap is where customer-facing failures hide.

Catch missed sends

Know within minutes when an expected email stops arriving, not days later when a customer complains or a report surfaces an unexplained dip in a key flow.

Spot delays that still break the experience

A password reset or order confirmation that arrives two hours late is not a success. Late delivery inside a broken window is a failure with a timestamp.

Detect issues your customer would notice

Broken merge tags, failed links, duplicate sends, and content integrity checks flag the problems a customer would see before your team does.

Compare agent-built campaigns against your human baseline

When Klaviyo Composer, Salesforce Agentforce, or HubSpot Breeze ships a campaign, Telltide tracks whether it performs against the baseline your human team set, and excludes platform-wide outages from drift attribution.

Agent-built campaigns

The agentic CRM verification gap

Klaviyo Composer, Salesforce Agentforce, and HubSpot Breeze are building campaigns at machine pace. Subject lines, copy, send timing, audience splits. Decisions that used to pass through a human reviewer are now shipping straight to your customers, and the platform self-reports its own quality.

Telltide is the independent verification layer. Every monitored send is tagged by author, content drift and deliverability drops are watched on agent-built journeys, and agent-built performance is compared against your human baseline so you know when to step in.

Read why agent-built campaigns need independent verification →

Built for the emails customers notice.

If one of these fails, customers feel it immediately.

Order confirmations and receipts

Know the moment a payment goes through but the confirmation does not arrive.

Booking and appointment emails

Catch missed confirmations and reminders before customers assume the booking failed.

Shipping and tracking updates

Spot breaks before customers start asking where their order is.

Password resets and account alerts

Detect failures where late is almost as damaging as missing.

Renewals, invoices and reminders

Protect the operational emails customers rely on to manage their accounts.

Welcome and onboarding emails

Know when a new customer signs up but the first email never lands.

Agent-built campaigns

Klaviyo Composer, Salesforce Agentforce, and HubSpot Breeze ship campaigns at machine pace, with no browser-based human review in the loop. Telltide is the independent check.

Why it matters

One missing email is rarely just one missing email

When a confirmation, receipt or shipping update fails to land, the knock-on cost is almost always bigger than the send itself. It shows up as refund requests, support load, and customers who quietly do not come back.

1

Refund requests you could have avoided

A missing confirmation or shipping email is often enough, on its own, to trigger a refund request, even when the order itself is fine.

2

Support time you cannot get back

"I never got my confirmation" and "where is my order?" are the emails small teams dread answering. Every broken send turns into a thread that has to be investigated, explained and resolved.

3

Customers you lose without ever knowing why

A customer whose first order felt broken is far less likely to come back, and more likely to raise new complaints when the next order arrives. The cost lands long after the missing email.

How it works

Three simple steps to monitor a live email workflow

Connect a workflow you want to watch

Point Telltide at any live email workflow. Confirmations, reminders, resets, receipts, lifecycle sends. Setup takes minutes, not engineering time.

Tell Telltide what normal looks like

Set the rules, or let Telltide learn them. Arrival windows can be configured manually, or baselined automatically from your real send history. Telltide also tags every monitored send by author, so you can see which campaigns came from your human team and which came from Klaviyo Composer, Salesforce Agentforce, or HubSpot Breeze.

Get alerted when something breaks

The Telltide Card flips red on your lock screen. Email, Slack, and webhook alerts also fire if you've configured them. On Growth and Business, drift detection pages you the moment agent-built campaigns underperform against your human baseline.

Other channels

Email, Slack, and webhooks pile in behind the Card.

If you want incident detail in your team channel or piped into PagerDuty, the same alert fires to email, Slack, and signed webhooks. The Card is the headline. These are the trail.

Telltide alert email: Order confirmation is overdue, no email received within the gap threshold. Context lines show typical volume, recent receive count, and last healthy send.
A fallback channel, not the headline. The same alert lands in inboxes, Slack channels, and webhook endpoints if you've wired them up.

Who it is for

Built for CRM and lifecycle teams who own customer-facing email

Ecommerce and subscription brands

Monitor order confirmations, shipping updates, abandoned cart flows, renewal reminders, and other workflows customers notice immediately when they go missing.

SaaS and lifecycle teams

Monitor welcome journeys, activation emails, onboarding sequences, and retention programs where a send that didn't go out is invisible until a customer churns or raises a ticket.

Teams running agent-built CRM workflows

Klaviyo Composer, Salesforce Agentforce, HubSpot Breeze. The independent verification layer that platform self-reporting cannot be.

Best fit for teams monitoring critical flows, not bulk campaigns alone.

Use cases

Start with the workflow your customers would notice first

Start with the workflow that would create the most pain if it failed today. Most teams expand coverage from there.

Agentic CRM monitoring

Klaviyo Composer, Salesforce Agentforce, and HubSpot Breeze ship at machine pace. Independent verification, content drift detection, agent-vs-human comparison.

See agentic CRM monitoring →

Ecommerce

Order confirmations, payment receipts, tracking emails and abandoned cart workflows. The sends customers notice first when they go missing.

See ecommerce monitoring →

Welcome and onboarding

Know when a new customer enters a workflow but the first email never arrives.

See welcome monitoring →

Lifecycle and retention

Always-on customer programs that can fail silently between reports.

See lifecycle monitoring →

Transactional and triggered

Booking confirmations, password resets, account alerts and other time-sensitive sends.

See transactional monitoring →

ESP migration

Confirm critical emails are still landing while routing, templates and logic change.

See migration monitoring →

Loyalty and rewards

Points updates, expiry reminders and tier-change emails where trust matters.

See loyalty monitoring →

Pricing

Start with one workflow. Expand as coverage grows.

Priced on monitors, one per email workflow you watch. One monitor is free forever. Paid plans from $49 USD per month. Upgrades are driven by team growth and scale, not feature unlocks.

Free

$0

1 monitor. Email alerts.

Starter

$49

7 monitors, 3 seats. Telltide Card, agent attribution.

Growth

$149

25 monitors, 10 seats. Slack, drift detection, heartbeats.

Business

$499

100 monitors, 25 seats. SMS, role permissions, SLA.

All prices USD per month, ex-tax. Annual billing is two months free. Enterprise available with SSO, custom SLA and dedicated support.

See full pricing →

Common questions

A wallet pass that lives in your Apple Wallet or Google Wallet. It's green when your email journeys are sending and no incidents are open. The moment something breaks, the Card flips red and pushes a notification to your lock screen. No app install, no extra inbox, no dashboard to check.
Telltide confirms whether an expected email arrived in the monitored inbox, whether it arrived inside the expected window, and whether it arrived more than once. On paid plans, optional content checks also look inside the message for broken links, unresolved personalisation tokens and truncated content, and every delivery is checked against the trust signals inbox providers use to decide if mail from your domain is legitimate. On Growth and Business, drift detection compares agent-built campaigns from Klaviyo Composer, Salesforce Agentforce, and HubSpot Breeze against your human baseline so quality regressions surface before customers see them.
Agent attribution tags every monitored send with its author, so you can see at a glance which campaigns came from your human team and which were built by Klaviyo Composer, Salesforce Agentforce, or HubSpot Breeze. Available on all paid plans. On Growth and Business, drift detection compares agent-built performance against your human baseline.
No. Inbox placement testing helps predict whether an email is likely to reach the inbox before you send. Telltide monitors live production workflows after they are already running.
Sending platforms focus on send-side reporting. They confirm dispatch and delivery events. They do not confirm whether the right email reached the monitored inbox on time and only once.
Telltide is platform-agnostic. If a platform sends email and you can include a monitoring address in the workflow, Telltide can monitor it.
No. ESP reporting tells you what your platform sent and how recipients engaged. Telltide is the independent layer that confirms whether the expected emails actually arrived from the inbox side. The two work alongside each other.

Stop finding out from customers

Monitor the email flows your customers rely on most and catch the sends that didn't go out before they become support issues, refunds, or lost trust.

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