ChatGPT Plugin

Groundmail

Send and track email

Brand: Groundmail

Category: Developer Tools
Primary Subcategory: Email APIs & Programmable Inboxes

Integration details

Description

Groundmail is a transactional email API for the email an app sends on a person's behalf, such as receipts, password resets and alerts. Connect your Groundmail account and ChatGPT can send and schedule email, show what happened to a message, set up and verify sending domains, manage templates, webhooks and suppressions, and check deliverability. What you can do: - Send a message, or a published template with variables, and see the result. - Look up recent emails and whether they were delivered, bounced or opened. - Add a sending domain, apply its DNS records and verify it. - Create and publish templates, set up webhooks, and manage the suppression list. - Check deliverability over the last 7 or 30 days. You choose the access when you connect: full, send-only or read-only, and you can revoke it at any time in your Groundmail settings. Groundmail asks before anything that sends email or deletes data. It is built for transactional email, not for cold outreach or bulk marketing.

Integration type: Plugin
Verification status: Not applicable
Platform: ChatGPT
Category: Developer Tools
Primary Subcategory: Email APIs & Programmable Inboxes
Secondary Subcategories: None listed
Brand: Groundmail
Access: Account required
First tracked: 2026-11-12
Tool count: 37
Market: US

AgentDiscoChatGPT Plugin Discovery Score

ChatGPT organic discovery is live

Not discoverable in ChatGPT yet

ChatGPT now suggests Plugins on its own when they match a user's request, but not every Plugin is being surfaced yet.We haven’t seen Groundmail suggested yet. Sign up and we’ll track it, and your Discoverability Score will appear here once ChatGPT starts surfacing it.

ChatGPT recommends Airtable when a user asks it to update a CRM. — ChatGPT surfaces Airtable because it matches the user's request.

Primary Subcategory

Competing in ChatGPT Email APIs & Programmable Inboxes

View Category

Listed in alphabetical order

Primary Subcategory

AgentInboxComing soonGet notified

AgentiSendComing soonGet notified

AgentMailComing soonGet notified

AI MailComing soonGet notified

Atomic Mail AgenticComing soonGet notified

GroundmailComing soonGet notified

Tools

37 tools agents can invoke

Add an address to the suppression list.
add_suppression
Apply Groundmail DNS records for a domain through Cloudflare, Vercel, GoDaddy, Netlify, DigitalOcean or DNSimple, using the provider account connected in the dashboard. If none is connected, ask the user to connect it at https://app.groundmail.dev/integrations (never ask for the provider token in chat), or have them publish the records from create_domain by hand.
apply_domain_dns
Add a sending domain. Suggest a subdomain of the company's domain (mail.example.com): the app's email then keeps its own reputation and the team's mailboxes and DNS stay as they are. DNS must still be applied and verified before production sends. Records with already_set are already in place: leave them alone.
create_domain
Create a draft email template (html or blocks format).
create_template
Create a tenant for one of your customers. Then send with tenant set to its external id, and give it its own domains with create_domain (tenant).
create_tenant
Create a webhook endpoint. Returns the endpoint plus a signing secret (shown once).
create_webhook
Delete a webhook endpoint by id.
delete_webhook
Turn on free DMARC monitoring for a sending domain. Returns the report address and the exact DMARC record to publish (the current record with the address added to rua=, keeping the policy and other report addresses). Pass apply to update the record through a DNS provider connected in the dashboard. Reports start arriving within 24 to 48 hours.
enable_dmarc_monitoring
DMARC monitoring for a sending domain: who sends mail as it (grouped by provider, with unknown senders flagged as possible spoofing), SPF/DKIM/DMARC pass rates over the last 30 days, and whether it is safe to move the DMARC policy to quarantine. If monitoring is off, shows the current DMARC record; turn it on with enable_dmarc_monitoring.
get_dmarc_report
Get a fresh unique address on the team's test domain (<team>.test.groundmail.dev), plus this month's test email usage. Mail sent to it from any email provider (SendGrid, SES, Groundmail or anything else) is caught in the test inbox and never delivered. Use a new address per test, have the app send to it, then call wait_for_test_email.
get_test_inbox_address
Beta. The stored report of an import from SendGrid, Postmark, Mailgun, Resend or Amazon SES: what was imported, skipped and failed, the DNS changes per domain, what still needs doing, the code change and a prompt for it. Pass the import id, or omit it for the latest import. Previews are not stored.
get_import_report
Fetch best-effort deliverability metrics for recent sends (7d or 30d window).
get_deliverability
Get a single email by public id (msg_…): its status, and in delivery the recipient's mail server, its exact reply (250 … when accepted, 5xx … when refused), TLS and the latest deferral. delivered_at minus created_at is how long it took to land.
get_email
Get a template by id or alias.
get_template
Get one tenant, including whether it is paused and why.
get_tenant
A tenant's email counts, bounce and complaint rates over the last days (1–90, default 7), and its sending ramp today.
get_tenant_stats
Get one caught test email with its text and HTML bodies, headers, source, code and links.
get_test_email
List category opt-outs: addresses that used a one-click unsubscribe to leave product or newsletter email. Sends in that category to them are refused until the opt-out is removed.
list_category_opt_outs
List sending domains for this account.
list_domains
List recent emails sent from this account. Test emails (test keys, simulator addresses) have test: true.
list_emails
List emails received on domains with inbound enabled, newest first (bodies left out). A reply to an email you sent through Groundmail has in_reply_to_email: the sent email it answers. Pass in_reply_to_email: msg_… to list the replies to one sent email.
list_received_emails
List suppressed recipient addresses.
list_suppressions
List email templates.
list_templates
List tenants: one per customer you send email for, each with its own domains, suppression list, stats, pause switch and daily limit. Tenants are included on pay as you go and the Dedicated plan.
list_tenants
List emails caught in the test inbox (and emails sent with a gm_test_ key), newest first, with the extracted one-time code and links. Kept 14 days.
list_test_emails
List webhook endpoints for this account.
list_webhooks
Pause a tenant: its new sends are refused until it is resumed. The rest of the account keeps sending. Confirm with the user first.
pause_tenant
Publish a template, snapshotting an immutable version for sends.
publish_template
Remove a category opt-out by id or email address so the address receives that category again. Use only when the reader has asked to re-subscribe.
remove_category_opt_out
Remove a suppression by id or email address.
remove_suppression
Resume a paused tenant so it can send again. A tenant Groundmail paused (pause_source automated or admin) cannot be resumed this way; the user should fix the cause and contact support.
resume_tenant
Send a transactional email via Groundmail. Provide subject + html/text, or a published template_id / template_alias with optional variables. To test without delivering anything, send to a simulator address: delivered@, bounce@, block@, complaint@, suppressed@ or delayed@simulator.groundmail.dev (plus addressing like bounce+test1@ works); the result has test: true and webhooks fire as for real mail. Do not put payment card numbers, government ID numbers, health information or passwords in the content.
send_email
Simulate a webhook event (POST /emails/test) for CI or local webhook testing. Optionally deliver to subscribed endpoints.
send_test_webhook_event
Change a tenant's name, default from domain, stream policy, daily limit or metadata.
update_tenant
Check one email address with Groundmail validation before accepting it (for example at signup): verdict valid | risky | invalid, reasons, a typo suggestion, and disposable / role flags. Free; sends nothing.
validate_email
Verify DNS for a sending domain after records are applied.
verify_domain
Wait for an email to a test inbox address and return it, with the one-time code and links extracted. An email that already arrived is returned at once. Waits up to timeout seconds (default 30, at most 60); on timeout, check that the app sent to the exact address and call again.
wait_for_test_email

FAQs

Groundmail ChatGPT Plugin FAQ

How the directory, categories and Discoverability Score work.

Read the methodology

How do I improve Groundmail's ChatGPT Plugin discoverability?

The levers are the listing surface agents actually read: names, descriptions, keywords, tool metadata, and registry health. Which lever matters depends on where discovery breaks, which is what continuous measurement shows.

What are Groundmail alternatives on ChatGPT?

As of 2026-11-12, Groundmail competes with AgentInbox, AgentiSend, AgentMail, AI Mail, Atomic Mail Agentic, Computer by DevRev, Cooper Email, Fax.Plus and 6 more in ChatGPT Email APIs & Programmable Inboxes, ranked by public Discoverability Score.

Where is this profile measured?

This profile uses the geography attached to the latest public registry snapshot: US. Locale tags are intentionally omitted.