The document discusses how to use the SMTP endpoint in Mule applications to send emails. It provides an example Mule flow that uses an HTTP inbound endpoint to trigger an SMTP outbound endpoint over Gmail, setting the payload and subject. The SMTP endpoint supports attachments, headers, and SSL via SMTPS.

1. How to use SMTP endpoint
16-05-2015

2. Abstract
• The main motto of this PPT is How to use
SMTP endpoint in our applications.

3. Introduction
• The SMTP transport can be used for sending
messages over SMTP using thejavax.mail API. The
implementation supports CC/BCC/ReplyTo
addresses, attachments and custom Header
properties. It also provides support
forjavax.mail.Message transformation. The
SMTPS connector enables SMTP over SSL using
the javax.mail APIs. It supports all the elements
and attributes of the SMTP transport, plus some
required properties for setting up the client key
store and the trust store for the SSL connection.

4. Example

5. .mflow
• <?xml version="1.0" encoding="UTF-8"?>
• <mule xmlns:smtp="http://www.mulesoft.org/schema/mule/smtp"
xmlns:http="http://www.mulesoft.org/schema/mule/http" xmlns="http://www.mulesoft.org/schema/mule/core"
xmlns:doc="http://www.mulesoft.org/schema/mule/documentation"
xmlns:spring="http://www.springframework.org/schema/beans" version="EE-3.4.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-current.xsd
• http://www.mulesoft.org/schema/mule/core http://www.mulesoft.org/schema/mule/core/current/mule.xsd
• http://www.mulesoft.org/schema/mule/http http://www.mulesoft.org/schema/mule/http/current/mule-http.xsd
• http://www.mulesoft.org/schema/mule/smtp http://www.mulesoft.org/schema/mule/smtp/current/mule-
smtp.xsd">
• <smtp:gmail-connector name="Gmail" validateConnections="true" doc:name="Gmail"/>
• <flow name="SMTPFlow1" doc:name="SMTPFlow1">
• <http:inbound-endpoint exchange-pattern="request-response" host="localhost" port="8087" path="smtp"
doc:name="HTTP"/>
• <logger message="--Entered into the flow" level="INFO" doc:name="Logger"/>
• <set-payload value="Hai Friend" doc:name="Set Payload"/>
• <smtp:outbound-endpoint host="smtp.gmail.com" port="587" user=“****%40gmail.com" password=“****"
to=“****@gmail.com" from=“****@gmail.com" subject="Hai" responseTimeout="10000" connector-ref="Gmail"
doc:name="SMTP"/>
• </flow>
• </mule>

6. • Output:
• Email will come to your inbox

7. • Flow of execution:
1. URL to trigger the service from browser
http://localhost:8087/smtp
2. Email will come to to-email address with the
payload in set-payload component as body and
subject in the SMTP component as mail subject

8. References
• https://docs.mulesoft.com/mule-user-
guide/v/3.7/smtp-transport-reference