Working with Message Flags on Server
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Changing the Message Flags
You can change message flags by using the changeMessageFlags() method. This method takes two parameters.
- The message sequence number or unique ID.
- MessageFlag.
The following flags can be set:
Setting Message Flags
The following code snippet shows you how to change message flags on an IMAP server with Aspose.Email.
// For complete examples and data files, please go to https://github.com/aspose-email/Aspose.Email-for-Java
// Mark the message as read
client.changeMessageFlags(1, ImapMessageFlags.isRead());
Removing Message Flags
Message flags can also be removed with the removeMessageFlags() method. Usage is similar to that of the changeMessageFlags() method. It takes a sequence number or unique message ID and MessageFlag. The following code snippet shows you how to remove message flags.
// For complete examples and data files, please go to https://github.com/aspose-email/Aspose.Email-for-Java
// Remove the message flag
client.removeMessageFlags(1, ImapMessageFlags.isRead());
Setting Custom Flags
You can also set custom flags to a message using the ImapClient of the API. The ImapClient AddMessageFlags provides the ability to set custom flags on messages.
// For complete examples and data files, please go to https://github.com/aspose-email/Aspose.Email-for-Java
// Create a message
MailMessage message = new MailMessage("user@domain1.com", "user@domain2.com", "subject", "message");
// Append the message to mailbox
String uid = client.appendMessage(ImapFolderInfo.IN_BOX, message);
// Add custom flags to the added messge
client.addMessageFlags(uid, com.aspose.email.ImapMessageFlags.op_BitwiseOr(ImapMessageFlags.keyword("custom1"), ImapMessageFlags.keyword("custom1_0")));
// Retreive the messages for checking the presence of custom flag
client.selectFolder(ImapFolderInfo.IN_BOX);
ImapMessageInfoCollection messageInfos = client.listMessages();
for (ImapMessageInfo inf : messageInfos) {
ImapMessageFlags[] flags = inf.getFlags().split();
if (inf.containsKeyword("custom1"))
System.out.println("Keyword found");
}