ONE MAILBOX. MANY WAYS TO BUILD.

Email API use cases for your business.

From a client website to a customer support workflow, connect the email address you already use to the work you need to get done.

ONE MAILBOX. CLEAR ENDPOINTS.

Turn a standard email mailbox into an API.

Connect SMTP and IMAP once. MailBridgeAPI gives your applications HTTP endpoints to trigger actions with that mailbox, while you keep your existing address and provider.

your@email.comSMTP + IMAP

MailBridgeAPI

Available endpointPOST /sendemail/

Send email

Trigger an API request to send from your connected address.

Available endpointGET /getemail/

Retrieve email

Read messages from the connected mailbox through a JSON response.

Available endpointGET /email/unsubscribed/

Sync unsubscribes

Retrieve opt-out records for your own contact workflows.

See every parameter

ONE MAILBOX. EVERY PROJECT.

Change the mailbox password once. Keep every project running.

Imagine that the same SMTP mailbox sends email from a website, an invoicing tool, internal automations and dozens more projects. When its password or provider settings change, update the connection once in MailBridgeAPI.

Without MailBridgeAPI

Every project stores the SMTP configuration. A password change becomes a search through every application, followed by new deployments and the risk of forgetting one.

WebsiteSMTP ••••••••01

Billing appSMTP ••••••••02

AutomationSMTP ••••••••03

With MailBridgeAPI

Every project calls the same email API. Update the mailbox connection in the dashboard; the applications keep using their existing API integration.

Mailbox settingsUpdate SMTP / IMAP once

Website

Billing app

Automation

One change instead of one change per project.

Whether the mailbox is used by three projects or hundreds, no source-code or deployment change is needed when only its mailbox password or connection settings change.

One connection. Value at every level.

For mailbox owners

Keep your familiar address and enter your connection settings yourself. A developer can integrate your mailbox without asking for its password.

For developers and agencies

Use account and mailbox API keys in your backend. Reuse the same HTTP integration pattern across client projects.

For business teams

Bring emails into the tools you already work in, and send updates from the address your customers recognize.

01DEVELOPMENT TEAMS

Connect one mailbox to several projects.

Imagine this

A website, an invoicing tool, and an operations script all use the same mailbox. A provider setting changes.

What your team gains

Mailbox configuration lives in one place. You avoid distributing the mailbox password across each project.

How you build it

Configure the mailbox’s SMTP and IMAP access in MailBridgeAPI.
Your authorized projects use the account and mailbox keys for their requests.
Update the mailbox connection in the dashboard when its provider settings change.

Explore the endpoint

02AGENCIES & FREELANCERS

Build for clients without asking for their email password.

Imagine this

A client wants their website to send enquiry acknowledgements from contact@theircompany.com, but does not want to share the mailbox password with the development team.

What your team gains

A clearer handoff: the client manages the mailbox connection, while the developer works with API access.

How you build it

The client enters their SMTP and IMAP settings in the MailBridgeAPI dashboard.
They provide the account API key and the key for the mailbox to the authorized developer.
The developer keeps those keys in the project’s server configuration and sends acknowledgements through the API.

Explore the endpoint

03CUSTOMER SUPPORT

Put email conversations where your team works.

Imagine this

Your team switches between a shared inbox and an internal support application to handle the same customer requests.

What your team gains

Less switching between tools and a customer conversation attached to the work it belongs to.

How you build it

Your application fetches messages from the support mailbox’s INBOX.
It associates messages with customer records or tickets using your own matching rules.
An agent writes a response in your tool; your backend sends it through the connected mailbox.

Explore the endpoint

04FINANCE & OPERATIONS

Send invoices from the address customers recognize.

Imagine this

An invoice is ready in your internal system. Someone still downloads the PDF, opens an email client, and attaches it by hand.

What your team gains

Fewer manual steps, consistent email content, and a recognizable sender for your customers.

How you build it

Your application generates the invoice and prepares the recipient and message.
It encodes the PDF attachment and calls the sending endpoint.
It checks the API’s SMTP result and records that result against the invoice.

Explore the endpoint

05E-COMMERCE & BOOKINGS

Keep customers informed as an order moves forward.

Imagine this

A booking is confirmed or an order changes status in your application. The customer needs the right details at the right moment.

What your team gains

Communication follows the business event, using the email identity your customer already knows.

How you build it

Your application detects the order or booking event.
It prepares an email using the customer’s details and the event information.
Your backend sends the message through MailBridgeAPI and checks the send result.

Explore the endpoint

06AI-ASSISTED WORK

Turn incoming emails into useful input for your AI tools.

Imagine this

Your team receives repetitive enquiries and wants help identifying the topic and preparing a first draft.

What your team gains

A practical route from inbox content to assisted work, with human review where you need it.

How you build it

Your backend retrieves the relevant messages through the IMAP endpoint.
Your chosen AI service summarizes or classifies the content according to your rules.
Your team reviews a draft before your application sends the approved response.

Explore the endpoint

07AUTOMATION & INTERNAL TOOLS

Make email a step in your existing workflow.

Imagine this

An approved request in your business system should trigger an email, or a scheduled workflow needs to collect new inbox messages.

What your team gains

Email becomes part of the process instead of a separate task someone has to remember.

How you build it

Configure a scheduled job or an event in your application or automation tool.
Use its HTTP request step with your account and mailbox keys.
Process the JSON response and decide what the next step should do.

Explore the endpoint

08CUSTOMER COMMUNICATION

Keep opt-out records connected to your contact list.

Imagine this

Your application sends customer communications and needs to respect recipients who have asked to opt out.

What your team gains

Opt-out information becomes part of your list-management workflow, instead of a disconnected record.

How you build it

Configure the unsubscribe footer and enable it on the relevant sends.
Retrieve unsubscribe records for the mailbox through the API.
Match those recipients to your contact list and exclude them from future applicable mailings.

Explore the endpoint

These are workflows you can build with MailBridgeAPI. Your application or automation tool provides the business logic, scheduling, and any AI processing. Mailbox access depends on your provider; its sending limits still apply.

YOUR PROJECT NEEDS EMAIL. NOT THE EMAIL PASSWORD.

Integrate the mailbox. Keep its password out of the project.

Your client or mailbox owner connects the email account in MailBridgeAPI. You build the integration with API keys, without needing to know their mailbox password.

See the client integration example

Integrate the mailbox. Keep its password out of the project.

Mailbox owner

Enters SMTP / IMAP credentials in MailBridgeAPI.

MAILBOX CREDENTIALS

MailBridgeAPI

Uses the configured connection to communicate with the mailbox.

API KEYS

Developer & application

Uses account and mailbox API keys to send or retrieve emails.

The developer does not need the mailbox password.

A more reassuring client handoff

The owner enters the mailbox credentials. The developer receives the API access needed for the integration.

Fewer places to share a password

Keep the mailbox password out of project source code, developer messages, and individual application configurations.

One place for connection settings

When mailbox settings change, update the connection in the dashboard instead of redistributing the password across projects.

MailBridgeAPI still needs the owner’s mailbox credentials to connect to the email provider. API keys grant access to email operations: treat them as secrets and keep them in your backend.

YOUR NEXT INTEGRATION STARTS HERE.

Build more with the inbox you already have.

Turn your mailbox into an API, call your first email endpoint, and give every project a simpler way to send or retrieve messages.

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