Messaging

Send and receive e-mail, SMS and USSD.

• E-mail. The Mail client sends a message over SMTP for every record; the Mail collector downloads messages from a mailbox over IMAP or POP3. Build mail bodies with the Handlebars plugin.
• SMS and USSD over SMPP, connected to your SMSC or SMS gateway. The Sms transmitter sends messages and splits long texts; the Sms receiver starts the flow for every incoming message and delivery report; the Ussd server answers USSD sessions from the flow.

Timer → Mail collector → ... your logic → Handlebars → Mail client
Sms receiver → Decision router → ... → Sms transmitter

Plugins

Plugin	What it does	Pins
Mail client	Sends an e-mail over SMTP for every record it receives. The mail is either fully described by an incoming SmtpMessage, or built from the configuration (recipient, subject, body) with the body optionally taken from a TextRecord. Use it for notifications, reports and replies to collected mail.	Input, Continue
Mail collector	Downloads e-mail from a mailbox over IMAP or POP3 and emits every message as a SmtpMessage. Trigger it periodically (for example from a timer) to process incoming mail, optionally deleting it from the server after processing.	Start, Output, Continue
Sms receiver	Connects to an SMSC or SMS gateway over SMPP and emits every incoming SMS (and delivery report) as a message. It is a listener: the flow keeps running while it is connected.	Start, Output, DeliveryAck
Sms transmitter	Sends SMS messages to an SMSC or SMS gateway over SMPP. Long texts are split into concatenated parts automatically; several receivers can be given in one message.	Input, Output, Continue
Ussd server	Implements a USSD application over SMPP: receives USSD requests from the SMSC/USSD gateway, emits them to the flow, and sends back the response messages the flow produces. Use it to build USSD menus (e.g. *123#).	Start, Request, Response