Test with stuff + Forestry potential support

BM_src/forestry/api/mail/MailAddress.java

@@ -0,0 +1,54 @@
+package forestry.api.mail;
+
+import net.minecraft.nbt.NBTTagCompound;
+import forestry.api.core.INBTTagable;
+
+public class MailAddress implements INBTTagable {
+	private String type;
+	private String identifier;
+
+	private MailAddress() {
+	}
+
+	public MailAddress(String identifier) {
+		this(identifier, "player");
+	}
+
+	public MailAddress(String identifier, String type) {
+		this.identifier = identifier;
+		this.type = type;
+	}
+
+	public String getType() {
+		return type;
+	}
+
+	public String getIdentifier() {
+		return identifier;
+	}
+
+	public boolean isPlayer() {
+		return "player".equals(type);
+	}
+
+	@Override
+	public void readFromNBT(NBTTagCompound nbttagcompound) {
+		if(nbttagcompound.hasKey("TP"))
+			type = nbttagcompound.getString("TP");
+		else
+			type = nbttagcompound.getShort("TYP") == 0 ? "player" : "trader";
+		identifier = nbttagcompound.getString("ID");
+	}
+
+	@Override
+	public void writeToNBT(NBTTagCompound nbttagcompound) {
+		nbttagcompound.setString("TP", type);
+		nbttagcompound.setString("ID", identifier);
+	}
+
+	public static MailAddress loadFromNBT(NBTTagCompound nbttagcompound) {
+		MailAddress address = new MailAddress();
+		address.readFromNBT(nbttagcompound);
+		return address;
+	}
+}