Added missing overloaded method for populating DkimConfig

Author: bbottema

modules/core-module/src/main/java/org/simplejavamail/api/email/config/DkimConfig.java

@@ -10,10 +10,13 @@
 import java.io.IOException;
 import java.io.InputStream;
 import java.io.Serializable;
+import java.util.Arrays;
+import java.util.HashSet;
 import java.util.Set;
 
 import static java.lang.String.format;
 import static java.nio.charset.StandardCharsets.UTF_8;
+import static java.util.Arrays.asList;
 import static org.simplejavamail.internal.util.MiscUtil.readInputStreamToBytes;
 
 /**
@@ -142,6 +145,15 @@ public DkimConfigBuilder excludedHeadersFromDkimDefaultSigningList(@Nullable Set
 			return this;
 		}
 
+		/**
+		 * @see EmailPopulatingBuilder#signWithDomainKey(DkimConfig)
+		 * @see EmailPopulatingBuilder#signWithDomainKey(byte[], String, String, Set)
+		 */
+		public DkimConfigBuilder excludedHeadersFromDkimDefaultSigningList(@Nullable String... excludedHeadersFromDkimDefaultSigningList) {
+			this.excludedHeadersFromDkimDefaultSigningList = new HashSet<>(asList(excludedHeadersFromDkimDefaultSigningList));
+			return this;
+		}
+
 		public DkimConfig build() {
 			return new DkimConfig(dkimPrivateKeyData, dkimSigningDomain, dkimSelector, excludedHeadersFromDkimDefaultSigningList);
 		}