javax.mail.NoSuchProviderException: smtp

添加混淆规则

-dontwarn java.awt.**

-dontwarn javax.activation.**

-dontwarn java.beans.**

-keep class javamail.** {*;}

-keep class javax.mail.** {*;}

-keep class javax.activation.** {*;}

-keep class com.sun.mail.** {*;}

-keep class mailcap.** {*;}

-keep class mimetypes.** {*;}

-keep class myjava.awt.datatransfer.** {*;}

-keep class org.apache.harmony.awt.** {*;}

-keep class org.apache.harmony.misc.** {*;}