Set the X-Priority Header of an Email

Demonstrates how to set the X-Priority header field of an email.

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'  The AddHeaderField can be called to add any header field.
'  If the header field already exists, AddHeaderField replaces it.
Dim email As New Chilkat.Email()
email.AddHeaderField("X-Priority","3 (Normal)")

email.AddHeaderField("X-Priority","1 (High)")

email.AddHeaderField("X-Priority","5 (Low)")


'  The X-Priority value ranges from 1 to 5, with 1 being
'  high priority, 3 is normal, and 5 is low.
'  You may set X-Priority to the number alone:

email.AddHeaderField("X-Priority","1")

'  Including extra text, such as (High), should not
'  affect how the header is interpreted.
email.AddHeaderField("X-Priority","1 (High)")