Flow: Email Connector

---

Send an Email from a Flow

The following steps explain how to configure and use the email connector (via mail-send connector) in a BPMN flow.

1. Flow

   Launch your BPMN Modeler and open the flow where you want to send an email. Insert or select a Service Task in the flow where the email should be sent.

2. Set the Service Task to Use a Connector

   Select the Service Task and open the Properties/Details panel. Under Implementation:

   • Choose Type as Connector.
   • Set the Connector ID to mail-send (or your engine-specific ID).

   Select the Service Task and open the Properties panel :

   • Goto Implementation > Type and set the value to Connector
   • Set Connector Id as mail-send

   Reference Screenshot:

   

3. Configure Connector Inputs

   Under Connector inputs, define parameters for the email connector. Common inputs include to, subject, and html or text. You can also configure additional parameters like cc, bcc, attachments, and so on.

4. Save and Deploy

   When all required inputs are set, ensure your BPMN model shows 0 Errors, 0 Warnings, save and publish.

5. Test the Flow

   Run the process. When the flow reaches the Send Email Service Task, the engine will invoke the mail-send connector with your specified parameters. Verify the recipient’s inbox to confirm success.

---

Configuring the Email Connector Parameters

Each parameter below can be specified as a hard-coded string value or via an expression referencing a process variable (e.g., ${variableName}).

Input Parameter	Type	Required?	Description
from	String	No	Sender’s email address. Typically read from configuration if not provided.
fromAlias	String	No	Display name for the from address. Also typically read from configuration if omitted.
to	String	Yes	Primary recipient’s email address. Can be a static string ("user@example.com") or an expression (${email}).
cc	String	No	Comma-separated list of CC recipients.
bcc	String	No	Comma-separated list of BCC recipients.
subject	String	Yes	Subject line for the email, e.g. "Order Confirmation" or ${email_subject}.
text	String	No	Plain-text body of the email. Optional if using html.
html	String	No	HTML body of the email. Either text or html (or both) can be used.
fileNames	List<String>	No	Paths to files for attachments. Example: ["/path/to/file1.pdf"].
files	Map<String, File>	No	Map of filenames → file objects stored as process variables for attachments.

Note: Make sure your BPM engine’s SMTP settings (host, port, credentials) are configured so the mail-send connector can dispatch emails successfully.