01
Inbox triage
- Read incoming threads
- Classify by intent + urgency
- Draft replies for review
Mailcheck
2 tools available
Mailcheck is an email verification service that helps businesses validate email addresses to ensure deliverability and reduce bounce rates.
Connect Mailcheck to Definable to triage inboxes, draft and queue follow-ups, classify and route incoming threads. Personas call Mailcheck's 2 tools directly from chat or scheduled flows. Hand off to an email persona to triage, draft, and route — with you in the loop on every outbound.
Common workflows with Mailcheck
02
Auto-follow-up
- Detect emails awaiting reply for 3+ days
- Draft contextual nudges
- Queue for one-click send
03
Lead capture
- Listen for inbound from a form alias
- Extract details
- Push to the CRM
Mailcheck actions 2
Every Mailcheck action below is a callable tool any Definable persona can invoke.
Validate Domain
Tool to validate a domain for disposability, MX records, domain age, and spam indicators. Use when checking if a domain is associated with temporary email services, public email providers, or forwarding services.
Verify Email Address
Tool to verify provided email address. Use after obtaining user email input.
Agent Mail
AgentMail provides AI agents with their own email inboxes, enabling them to send, receive, and act upon emails for communication with services, people, and other agents.
Bouncer
Bouncer is an email verification and validation service that helps ensure email deliverability by verifying email addresses through real-time and batch processing APIs.
Campaign Cleaner
Campaign Cleaner is a tool designed to optimize email campaigns by ensuring compatibility across email clients, improving deliverability, and enhancing overall performance.
Clearout
Clearout offers AI-powered email validation, email finder, and prospecting services to enhance email deliverability and lead generation.
ClickSend
ClickSend is a cloud-based SMS and email marketing platform that enables businesses to send and receive SMS messages, manage contacts, and track campaign performance.
Emailable
Emailable provides an email verification API that allows developers to integrate real-time email validation into their applications, ensuring the accuracy and deliverability of email addresses.
Frequently asked questions
What can I automate with Mailcheck on Definable?
Anything Mailcheck exposes through its API. Common email workflows on Definable include triage inboxes, draft and queue follow-ups, classify and route incoming threads. Personas can call any of the 2 Mailcheck tools directly, then chain the result into another integration without you writing code.
How does Mailcheck authentication work?
Mailcheck uses API_KEY on Definable. You connect once from the integrations page, scoped to the permissions you choose, and from then on any persona that has the integration enabled can act on your behalf. Tokens are encrypted at rest and rotated automatically.
Is the Mailcheck integration included in my Definable plan?
Yes — every Definable plan, including Starter, includes access to all 2 Mailcheck tools. You only need a separate Mailcheck subscription if Mailcheck itself charges per seat or per API call.
Is using Mailcheck through Definable secure?
Every call from a persona to Mailcheck is logged with the user, persona, prompt, and response. Tokens never leave Definable's secrets vault, scopes are configurable per persona, and you can revoke access at any time from the integration page.
How do I get started with Mailcheck on Definable?
Sign up for Definable, open the integrations page, find Mailcheck, and connect via OAuth or API key. You can immediately attach Mailcheck to any persona and start running workflows. The free Starter plan includes 5,000 credits/month.
What Mailcheck actions does Definable expose?
Definable exposes all 2 Mailcheck actions as callable tools — including `Validate Domain`, `Verify Email Address`. Each tool gets a typed parameter schema so personas know exactly how to call it.
Ready to automate with Mailcheck?
Wire it up in minutes. No coding required.