fixed mail envelope from property

pom.xml

@@ -6,7 +6,7 @@
 
     <groupId>org.example</groupId>
     <artifactId>Widerhall</artifactId>
-    <version>0.2.44</version>
+    <version>0.2.45</version>
     <build>
         <plugins>
             <plugin>

src/main/java/de/srsoftware/widerhall/data/MailingList.java

@@ -87,7 +87,7 @@ public class MailingList implements MessageHandler, ProblemListener {
         this.email = email;
         this.name = name;
         this.state = state;
-        this.smtp = new SmtpClient(smtpHost,smtpPort,smtpUser,smtpPass);
+        this.smtp = new SmtpClient(smtpHost,smtpPort,smtpUser,smtpPass,email);
         this.imap = new ImapClient(imapHost,imapPort,imapUser,imapPass,inbox,this);
     }
 
@@ -721,7 +721,7 @@ public class MailingList implements MessageHandler, ProblemListener {
             this.email = email;
         }
         this.name = name;
-        smtp = new SmtpClient(smtpHost,smtpPort,smtpUser,smtpPass);
+        smtp = new SmtpClient(smtpHost,smtpPort,smtpUser,smtpPass,email);
         imap = new ImapClient(imapHost,imapPort,imapUser,imapPass,inbox,this);
         if (this.hasState(STATE_ENABLED)) imap.start().addListener(this);
     }

src/main/java/de/srsoftware/widerhall/mail/SmtpClient.java

@@ -1,5 +1,6 @@
 package de.srsoftware.widerhall.mail;
 
+import com.sun.mail.imap.protocol.ENVELOPE;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -15,19 +16,21 @@ public class SmtpClient {
     private static final String HOST = "mail.smtp.host";
     private static final String PORT = "mail.smtp.port";
     private static final String AUTH = "mail.smtp.auth";
+    private static final String ENVELOPE_FROM = "mail.smtp.from";
     private static final String SSL = "mail.smtp.ssl.enable";
     private static final String UTF8 = "UTF-8";
-    private final String host,password,username;
+    private final String host,password,username,from;
     private final int port;
     private boolean forwardUsingListAddress = true;
 
     private Session session;
 
-    public SmtpClient(String host, int port, String username, String password){
+    public SmtpClient(String host, int port, String username, String password, String envelopeFrom){
         this.username = username;
         this.password = password;
         this.host = host;
         this.port = port;
+        this.from = envelopeFrom;
     }
 
 
@@ -86,6 +89,7 @@ public class SmtpClient {
             props.put(PORT, port);
             props.put(AUTH, true);
             props.put(SSL, true);
+            props.put(ENVELOPE_FROM,from);
 
             session = Session.getInstance(props);
             LOG.debug("Created new session: {}", session);