DKIM fix for sendEmailWithAttachment. (#111)

* Add the the From:, Reply-to, and To: headers to sendEmailWithAttachment. The lack of a From: header breaks DKIM.

* Added a null check for sourceEmail in sendEmailWithAttachment, and removed the 'to' param from the test as it was null and isn't necessary for that test to do what it needs to.

Author: chrisa-42

groovy-aws-sdk-ses/src/main/groovy/com/agorapulse/awssdk/ses/AwsSesMailer.groovy

@@ -20,6 +20,7 @@ import javax.activation.DataHandler
 import javax.activation.DataSource
 import javax.mail.BodyPart
 import javax.mail.Session
+import javax.mail.internet.InternetAddress
 import javax.mail.internet.MimeBodyPart
 import javax.mail.internet.MimeMessage
 import javax.mail.internet.MimeMultipart
@@ -76,6 +77,16 @@ class AwsSesMailer {
 
         Session session = Session.getInstance(new Properties())
         MimeMessage mimeMessage = new MimeMessage(session)
+        if (transactionalEmail.sourceEmail) {
+            mimeMessage.setFrom(new InternetAddress(transactionalEmail.sourceEmail))
+        }
+        if (transactionalEmail.replyToEmail) {
+            InternetAddress[] replyToArray = [new InternetAddress(transactionalEmail.replyToEmail)]
+            mimeMessage.setReplyTo(replyToArray)
+        }
+        transactionalEmail.recipients.each { recipient ->
+            mimeMessage.addRecipients(javax.mail.Message.RecipientType.TO, new InternetAddress(recipient))
+        }
         def subject = transactionalEmail.subject
         mimeMessage.setSubject(subject)
         MimeMultipart mimeMultipart = new MimeMultipart()

groovy-aws-sdk-ses/src/test/groovy/com/agorapulse/awssdk/ses/AwsSesMailerSpec.groovy

@@ -77,7 +77,6 @@ class AwsSesMailerSpec extends Specification {
         awsSesMailer.mailWithAttachment {
             subject subjectStr
             htmlBody '<p>This is an example body</p>'
-            to System.getProperty('TEST_INBOX_EMAIL')
             from System.getProperty('TEST_FROM_EMAIL')
             attachment {
                 filepath '/temp/virus.exe'