Rust

Set the X-Priority Header of an Email

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

// The AddHeaderField can be called to add any header field.
// If the header field already exists, AddHeaderField replaces it.
let email = chilkat::Email::new();
email.add_header_field("X-Priority", "3 (Normal)");

email.add_header_field("X-Priority", "1 (High)");

email.add_header_field("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.add_header_field("X-Priority", "1");

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