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Email Task

To send an email from OpenEndpoints you need to
  1. 1.
    Configure your email server
  2. 2.
    Create an email task

Configure Email Server

To send email from your application the file "email-sending-configuration.xml" must be present under application.
<email-sending-configuration>
<server>hostname-to-connect-to</server>
<!--optional-->
<port>xxxx</port>
<!--optional-->
<username>xxxx</username>
<password>xxxx</password>
<!--optional: zero or many -->
<header name='foo'>some-value</header>
</email-sending-configuration>
The file has the root element <email-sending-configuration> and have the following sets of sub-elements.
  • If no username and password are set, TLS will not be used
  • extra headers are written into every email sent via SMTP, for example authorization headers for a commercial email sending service

Alternative Set-Up:

An alternative option is to configure an MX address for the DNS lookup.
<email-sending-configuration>
<mx-address>an address for MX DNS lookup.</mx-address>
</email-sending-configuration>

Create Email Task

The task <task class="endpoints.task.EmailTask"> sends an email. It has the following sub-elements configuring it:
<task class="endpoints.task.EmailTask">
<from>[email protected]</from>
<to>${client-email}</to>
<subject>Message from OpenEndpoints</subject>
<!-- one or many; "many" will create an multipart/alternative email part -->
<body-transformation name="a-transformation-generating-text-or-html"/>
<!-- zero or many -->
<attachment-static filename="path-to-file-in-static"/>
<!-- zero or many -->
<attachment-transformation name="a-transformation" filename="invoice-${invoice-number}.pdf"/>
<!-- zero or many -->
<attachment-ooxml-parameter-expansion source="foo.docx" filename="invoice-${invoice-number}.pdf"/>
<!-- zero or one -->
<attachments-from-request-file-uploads/>
</task>
• <from> is mandatory (variables are expanded)
• <to> is mandatory (variables are expanded). There may be multiple <to> elements. Each <to> sends a separate email, to just this recipient. Per <to>, only one recipient address is allowed
• <subject> is mandatory (variables are expanded)
• <body-transformation name="a-transformation"/> is mandatory, and can appear multiple times. This references a transformation (see below). All the different results are placed into a ”multipart/alternative” email part. It would be normal for one referenced transformation to produce HTML and the other plain text.
• <attachment-static filename="path/foo.pdf"> takes the foo.pdf file out of the static directory and includes it as an attachment in the email. Variables are not allowed in the filename attribute.
• <attachment-transformation name="a-transformation" filename="invoice-${invoice-number}.pdf"/>. For each of the elements, the transformation is executed, and the resulting bytes are attached as a file to the sent email. The name of the file is specified in the filename attribute, variables are expanded.
• <attachment-ooxml-parameter-expansion source="foo.docx" filename="invoice-${invoice-number}.pdf"/> will read in the file “foo.docx” from the “ooxml-responses” directory under the Endpoint's configuration and replace any ${foo} variables in the document's body, and deliver it. Only DOCX is supported; DOC is not supported. The name of the file is specified in the filename attribute, parameters like ${foo} are expanded.
• <attachments-from-request-file-uploads/>. This includes as attachments all file uploads that have been uploaded to this request. Any attachment may (optionally) have attributes such as if="${foo}" equals="bar".

Embedding Images

If the body has a content type like text/html; charset=utf-8 then it may include tags such as <img src="cid:foo/bar.jpg">. The tag is most commonly an <img> but can be any tag.
The system then searches in the static directory for any file with that path. The file is included with the image, as a “related” multi-part part, meaning the file is available to the HTML document when its rendered in the email client.