Create MS Outlook Distribution Lists in Java

readme.md

Read the complete article on how to create and read MS Outlook distribution lists in Java: https://blog.aspose.com/2022/05/06/create-ms-outlook-distribution-lists-in-java/

create-outlook-distribution-list.java

String dataDir = "outlook/";

String displayName1 = "Sebastian Wright";
String email1 = "SebastianWright@dayrep.com";

String displayName2 = "Wichert Kroos";
String email2 = "WichertKroos@teleworm.us";

String strEntryId1;
String strEntryId2;

// Create distribution list from contacts
try (PersonalStorage personalStorage = PersonalStorage.create(dataDir + "list.pst", FileFormatVersion.Unicode)) {
    // Add the contact folder to PST
    FolderInfo contactFolder = personalStorage.createPredefinedFolder("Contacts", StandardIpmFolder.Contacts);

    // Create contacts
    strEntryId1 = contactFolder.addMapiMessageItem(new MapiContact(displayName1, email1));
    strEntryId2 = contactFolder.addMapiMessageItem(new MapiContact(displayName2, email2));

    // Create a collection to keep members
    MapiDistributionListMember member1 = new MapiDistributionListMember(displayName1, email1);
    member1.setEntryIdType(MapiDistributionListEntryIdType.Contact);
    member1.setEntryId(Base64.getDecoder().decode(strEntryId1));

    MapiDistributionListMember member2 = new MapiDistributionListMember(displayName2, email2);
    member2.setEntryIdType(MapiDistributionListEntryIdType.Contact);
    member2.setEntryId(Base64.getDecoder().decode(strEntryId2));

    // Add members to collection
    MapiDistributionListMemberCollection members = new MapiDistributionListMemberCollection();
    members.add(member1);
    members.add(member2);

    // Create list
    MapiDistributionList distributionList = new MapiDistributionList("Contact list", members);
    distributionList.setBody("Distribution List Body");
    distributionList.setSubject("Sample Distribution List using Aspose.Email");

    // Add distribution list to PST
    contactFolder.addMapiMessageItem(distributionList);
}

read-outlook-distribution-list.java

// Load PST file
MapiMessage message = MapiMessage.load("list.pst");

// Fetch distribution list
MapiDistributionList dlist = (MapiDistributionList)message.toMapiMessageItem();

// Get members collection
MapiDistributionListMemberCollection members = dlist.getMembers();

// Read each MapiDistributionListMember from collection
MapiDistributionListMember member1 = members.get(0);