Manage MAPI Properties using C#

GetCustomProperties.cs

// Retrieve and print custom properties
var customProperties = msg.GetCustomProperties();
foreach (var customProperty in customProperties)
{
    Console.WriteLine($"Tag: {customProperty.Tag}");
    Console.WriteLine($"Canonical Name: {customProperty.Descriptor.CanonicalName}");
    Console.WriteLine($"Data Type: {customProperty.Descriptor.DataType}");
}

GetPropertiesByDescriptor.cs

// Retrieve and print the InternetMessageId property if it exists
if (msg.Properties[KnownPropertyList.InternetMessageId] != null)
{
    var property = msg.Properties[KnownPropertyList.InternetMessageId];
    Console.WriteLine($"Tag: {property.Tag}");
    Console.WriteLine($"Canonical Name: {property.Descriptor.CanonicalName}");
    Console.WriteLine($"Data Type: {property.Descriptor.DataType}");
    
    // Retrieve and print the property value if it is a string
    if (property.Descriptor.DataType == PropertyDataType.String)
    {
        var propertyValue = property.GetString();
        Console.WriteLine($"Value: {propertyValue}");
    }
}

GetPropertiesByTag.cs

// Retrieve and print the PR_HASATTACH property if it exists
if (msg.Properties[MapiPropertyTag.PR_HASATTACH] != null)
{
    var property = msg.Properties[MapiPropertyTag.PR_HASATTACH];
    Console.WriteLine($"Tag: {property.Tag}");
    Console.WriteLine($"Data Type: {property.DataType}");
    
    // Retrieve and print the property value if it is a boolean
    if (property.DataType == (int)MapiPropertyType.PT_BOOLEAN)
    {
        var propertyValue = property.GetBoolean();
        Console.WriteLine($"Has Attachments: {propertyValue}");
    }
}

GetProperty.cs

// Retrieve and print the CurrentVersionName property
var namedProperty = msg.GetProperty(KnownPropertyList.CurrentVersionName);
if (namedProperty != null)
{
    Console.WriteLine($"Current Version Name: {namedProperty.GetString()}");
}

ListAllProperties.cs

// Load the email message from a file
var msg = MapiMessage.Load(@"D:\Aspose\Files\msg\test.msg");

// Iterate through all MAPI properties and print their details
foreach (var mapiProperty in msg.Properties.Values)
{
    Console.WriteLine($"Tag: {mapiProperty.Tag}");
    Console.WriteLine($"Canonical Name: {mapiProperty.Descriptor.CanonicalName}");
    Console.WriteLine($"Data Type: {mapiProperty.Descriptor.DataType}");
}

ListNamedProperties.cs

foreach (MapiNamedProperty mapiNamedProperty in msg.NamedProperties.Values)
{
    if (mapiNamedProperty.Descriptor is PidNamePropertyDescriptor pidNamePropertyDescriptor)
    {
        Console.WriteLine($"GUID: {pidNamePropertyDescriptor.PropertySet}");
        Console.WriteLine($"Canonical Name: {pidNamePropertyDescriptor.CanonicalName}");
        Console.WriteLine($"Data Type: {pidNamePropertyDescriptor.DataType}");
    }
    
    if (mapiNamedProperty.Descriptor is PidLidPropertyDescriptor pidLidPropertyDescriptor)
    {
        Console.WriteLine($"GUID: {pidLidPropertyDescriptor.PropertySet}");
        Console.WriteLine($"Canonical Name: {pidLidPropertyDescriptor.CanonicalName}");
        Console.WriteLine($"Long ID: {pidLidPropertyDescriptor.LongId}");
        Console.WriteLine($"Data Type: {pidLidPropertyDescriptor.DataType}");
    }
}