Apache Commons Email 怎样设置邮件优先级？
Apache Commons Email 怎样设置邮件优先级？类 org.apache.commons.mail.Email 及其子类
包括 MultiPartEmail, SimpleEmail, HtmlEmail, ImageHtmlEmail
// Email email = Email的实例;
email.addHeader("X-Priority", "1");
也可以把文字带上
// Email email = Email的实例;
email.addHeader("X-Priority", "1 (Highest)");
优先级数值：
1( highest ) or2( high ) 3( normal ) 4( low ) and 5( lowest )
默认为 "3"
Values: 1 (Highest), 2 (High), 3 (Normal), 4 (Low), 5 (Lowest).
3 (Normal) is default if the field is omitted.
下面是该方法的文档说明：
public void addHeader(String name,
String value)
Adds a header ( name, value ) to the headers Map.
Example:
X-Mailer: Sendmail,
X-Priority: 1( highest ) or2( high ) 3( normal ) 4( low ) and 5( lowest )
Disposition-Notification-To: user@domain.net
网上关于邮件优先级的资料：
Email Importance / Priority
http://www.chilkatsoft.com/p/p_471.asp
You can add the X-Priority header
field and give it the value string "1″. For example:
email.AddHeaderField "X-Priority","1″ This is the most common way of
setting the priority of an email. "3″ is normal, and "5″ is the lowest.
"2″ and "4″ are in-betweens, and frankly I’ve never seen anything but
"1″ or "3″ used. Microsoft Outlook adds these header fields when setting
a message to High priority:
X-Priority: 1 (Highest)
X-MSMail-Priority: High
Importance: High
I don’t think you’ll need all three, but you can add them all if you
wish.My recommendation is to only add the X-Priority header.
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