VB.NET
VB.NET
Remove a Header Field from an Email
See more Email Object Examples
Demonstrates the Chilkat Email.RemoveHeaderField method, which removes by name all occurrences of a header field. Header-field names are case-insensitive, and every repeated occurrence with the given name is removed. This example adds a custom header, then removes it.
Background: Editing a message sometimes means deleting a header outright — stripping a tracking header, removing an
X- flag before forwarding, or clearing a stale field before re-sending. Because a field name can appear more than once (like Received), RemoveHeaderField removes all matching occurrences in one call rather than just the first.Chilkat VB.NET Downloads
' Demonstrates the RemoveHeaderField method, which removes by name all occurrences of a
' header field. Header-field names are case-insensitive.
Dim email As New Chilkat.Email
email.Subject = "Remove header field"
email.From = "alice@example.com"
email.AddHeaderField("X-Custom-Header","some value")
' Use HasHeaderMatching to test for the header's presence. ("*" matches any value.)
Dim hasBefore As Boolean = email.HasHeaderMatching("X-Custom-Header","*",False)
Debug.WriteLine("Has X-Custom-Header before: " & hasBefore)
' Remove all occurrences of the header field.
email.RemoveHeaderField("X-Custom-Header")
Dim hasAfter As Boolean = email.HasHeaderMatching("X-Custom-Header","*",False)
Debug.WriteLine("Has X-Custom-Header after: " & hasAfter)