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.
Chilkat.Email email = 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)");