(adsbygoogle = window.adsbygoogle || []).push({}); This technical tip shows how to load any existing email message and modify its contents before saving it back to disk using You must login or register to view this content.. To do this successfully, specify the MessageFormat when loading the email message from disk. In addition, it is important to specify the correct MailMessageSaveType when saving the message back to disk.

To update and save an email, the following steps can be used:

1. Create an instance of the MailMessage class.
2. Load an existing message using the MailMessage class' load() method and specifying the MessageFormat of the existing message.
3. Get the subject using getSubject().
4. After modifying the subject, set it again using the setSubject() method.
5. Get the body using getHtmlBody().
6. After modifying the body, set it using the setHtmlBody() method .
7. Create an instance of the MailAddressCollection class.
8. Get the recipients from the TO field into a MailAddressCollection object using the getTo() method exposed by the MailMessage class.
9. Add or remove recipients using the add() and remove() methods exposed by the MailAddressCollection class.
10. Get the recipients from the CC field into a MailAddressCollection object using the getCC() method exposed by MailMessage class.
11. Add or remove recipients using the add() and remove() methods exposed by the MailAddressCollection class.
12. Call the save() method exposed by the MailMessage class, specifying the correct MailMessageSaveType to save the message file to the disk in MSG format.

Code:

    public static void UpdateAndSaveEmail()

{

    // Base folder for reading and writing files

String  strBaseFolder  = Environment.getExternalStorageDirectory().getPath();

strBaseFolder = strBaseFolder + "/";



    //Initialize and load an existing MSG file by specifying the MessageFormat

MailMessage email = MailMessage.load(strBaseFolder + "anEmail.msg", MessageFormat.getMsg());



    //Initialize a String variable to get the Email Subject

    String subject = email.getSubject();

    //Append some more information to Subject

subject = subject + " This text is added to the existing subject";

    //Set the Email Subject

email.setSubject(subject);



    //Initialize a String variable to get the Email's HTML Body

    String body = email.getHtmlBody();

    //Apppend some more information to the Body variable

body = body + "<br> This text is added to the existing body";

    //Set the Email Body

email.setHtmlBody(body);



    //Initialize MailAddressCollection object

MailAddressCollection contacts = new MailAddressCollection();



    //Retrieve Email's TO list

contacts = email.getTo();

    //Check if TO list has some values

if (contacts.size() > 0)

    {

        //Remove the first email address

contacts.remove(0);

        //Add another email address to collection

contacts.add("[email protected]");

    }

    //Set the collection as Email's TO list

email.setTo(contacts);



    //Initialize MailAddressCollection

contacts = new MailAddressCollection();



    //Retrieve Email's CC list

contacts = email.getCC();

    //Add another email address to collection

contacts.add("[email protected]");

    //Set the collection as Email's CC list

email.setCC(contacts);



    //Save the Email message to disk by specifying the MessageFormat

email.save(strBaseFolder + "message.msg", MailMessageSaveType.getOutlookMessageFormat());