diff --git a/app/Classes/FTN/Packet.php b/app/Classes/FTN/Packet.php
index d63b2a4..886d7d3 100644
--- a/app/Classes/FTN/Packet.php
+++ b/app/Classes/FTN/Packet.php
@@ -59,6 +59,7 @@ class Packet extends FTNBase implements \Iterator, \Countable
 	public Collection $messages;		// Messages in the Packet
 	public Collection $errors;			// Messages that fail validation
 	private string $name;				// Packet name
+	private ?System $system;			// System the packet is from
 	public bool $use_redis = TRUE;		// Use redis for messages.
 	private int $index;					// Our array index
 
@@ -116,7 +117,7 @@ class Packet extends FTNBase implements \Iterator, \Countable
 	 * @return Packet
 	 * @throws InvalidPacketException
 	 */
-	public static function open(File $file,Zone $zone=NULL,bool $use_redis=TRUE): self
+	public static function open(File $file,System $system=NULL,bool $use_redis=TRUE): self
 	{
 		Log::debug(sprintf('%s:+ Opening Packet [%s]',self::LOGKEY,$file));
 
@@ -136,7 +137,6 @@ class Packet extends FTNBase implements \Iterator, \Countable
 			throw new InvalidPacketException('Not a type 2 packet: '.$version);
 
 		$o = new self;
-		$o->zone = $zone;
 		$o->use_redis = $use_redis;
 		$o->name = (string)$file;
 		$o->header = unpack(self::unpackheader(self::v2header),$header);
@@ -155,6 +155,8 @@ class Packet extends FTNBase implements \Iterator, \Countable
 		else if (! strlen($x))
 			throw new InvalidPacketException('No message in packet: '.bin2hex($x));
 
+		$o->zone = $system?->zones->firstWhere('zone_id',$o->fz);
+
 		// If zone is null, we'll take the zone from the packet
 		if (! $o->zone)
 			$o->zone = Zone::where('zone_id',$o->fz)->where('default',TRUE)->single();
diff --git a/app/Classes/File/Receive.php b/app/Classes/File/Receive.php
index 375372b..4f57963 100644
--- a/app/Classes/File/Receive.php
+++ b/app/Classes/File/Receive.php
@@ -112,7 +112,7 @@ final class Receive extends Item
 					Log::info(sprintf('%s: - Processing mail packet [%s]',self::LOGKEY,$this->file));
 
 					try {
-						$po = Packet::open(new File($this->file),$this->ao->zone);
+						$po = Packet::open(new File($this->file),$this->ao->system);
 
 					} catch (InvalidPacketException $e) {
 						Log::error(sprintf('%s: - Not deleting packet [%s], as it generated an exception',self::LOGKEY,$this->file));
diff --git a/app/Console/Commands/PacketInfo.php b/app/Console/Commands/PacketInfo.php
index fdee03a..b017ec1 100644
--- a/app/Console/Commands/PacketInfo.php
+++ b/app/Console/Commands/PacketInfo.php
@@ -6,7 +6,7 @@ use Illuminate\Console\Command;
 use Symfony\Component\HttpFoundation\File\File;
 
 use App\Classes\FTN\Packet;
-use App\Models\Zone;
+use App\Models\System;
 
 class PacketInfo extends Command
 {
@@ -17,7 +17,7 @@ class PacketInfo extends Command
 	 */
 	protected $signature = 'packet:info'
 		.' {pkt : Packet to process}'
-		.' {zone? : Zone the packet is from}';
+		.' {system? : Zone the packet is from}';
 
 	/**
 	 * The console command description.
@@ -35,9 +35,9 @@ class PacketInfo extends Command
 	public function handle()
 	{
 		$f = new File($this->argument('pkt'));
-		$z = $this->argument('zone') ? Zone::where('zone_id',$this->argument('zone'))->singleOrFail() : NULL;
+		$s = $this->argument('system') ? System::where('name',$this->argument('zone'))->singleOrFail() : NULL;
 
-		$pkt = Packet::open($f,$z);
+		$pkt = Packet::open($f,$s);
 
 		$this->info(sprintf('Packet Type: %s',$pkt->type));
 		$this->info(sprintf('From: %s to %s',$pkt->fftn,$pkt->tftn));
diff --git a/app/Console/Commands/PacketProcess.php b/app/Console/Commands/PacketProcess.php
index 6472a23..2e923da 100644
--- a/app/Console/Commands/PacketProcess.php
+++ b/app/Console/Commands/PacketProcess.php
@@ -19,7 +19,7 @@ class PacketProcess extends Command
 	protected $signature = 'packet:process'
 		.' {pkt : Packet to process}'
 		.' {--N|nobot : Dont process bots}'
-		.' {zone? : Zone the packet is from}';
+		.' {system? : Zone the packet is from}';
 
 	/**
 	 * The console command description.
@@ -37,9 +37,9 @@ class PacketProcess extends Command
 	public function handle()
 	{
 		$f = new File($this->argument('pkt'));
-		$z = $this->argument('zone') ? Zone::where('zone_id',$this->argument('zone'))->singleOrFail() : NULL;
+		$s = $this->argument('system') ? Zone::where('name',$this->argument('system'))->singleOrFail() : NULL;
 
-		foreach (Packet::open($f,$z) as $msg) {
+		foreach (Packet::open($f,$s) as $msg) {
 			// @todo Quick check that the packet should be processed by us.
 			// @todo validate that the packet's zone is in the domain.
 
diff --git a/app/Jobs/MessageProcess.php b/app/Jobs/MessageProcess.php
index aa9707e..1329ea6 100644
--- a/app/Jobs/MessageProcess.php
+++ b/app/Jobs/MessageProcess.php
@@ -142,16 +142,20 @@ class MessageProcess implements ShouldQueue
 				->where('domain_id',$this->msg->fboss_o->zone->domain_id)
 				->single();
 
+			Log::debug(sprintf('%s: - Processing echomail [%s].',self::LOGKEY,$this->msg->msgid));
+
 			// Check for duplicate messages
 			// FTS-0009.001
 			if ($this->msg->msgid) {
 				$o = Echomail::where('msgid',$this->msg->msgid)
 					->where('fftn_id',($x=$this->msg->fboss_o) ? $x->id : NULL)
-					->where('datetime',Carbon::now()->subYears(3))
+					->where('datetime','>',Carbon::now()->subYears(3))
 					->single();
 
+				Log::debug(sprintf('%s: - Checking for duplicate from host id [%d].',self::LOGKEY,($x=$this->msg->fboss_o) ? $x->id : NULL));
+
 				if ($o) {
-					Log::alert(sprintf('%s:! Ignoring duplicate echomail [%s] in [%s] from (%s) [%s] to (%s).',
+					Log::alert(sprintf('%s:! Duplicate echomail [%s] in [%s] from (%s) [%s] to (%s) - updating seenby.',
 						self::LOGKEY,
 						$this->msg->msgid,
 						$this->msg->echoarea,
@@ -159,10 +163,31 @@ class MessageProcess implements ShouldQueue
 						$this->msg->user_from,
 					));
 
+					if (! $o->msg_crc)
+						$o->msg_crc = md5($this->msg->message);
+
+					$o->seenby = collect($o->getRawOriginal('seenby'))->merge($this->msg->seenaddress)->filter()->toArray();
+					$o->save();
+
 					return;
 				}
 			}
 
+			// Find another message with the same msg_crc
+			if ($this->msg->message) {
+				$o = Echomail::where('msg_crc',$xx=md5($this->msg->message))
+					->where('fftn_id',($x=$this->msg->fboss_o) ? $x->id : NULL)
+					->where('datetime','>',Carbon::now()->subWeek())
+					->get();
+
+				if ($o->count())
+					Log::alert(sprintf('%s:! Duplicate message CRC [%s] in [%s].',
+						self::LOGKEY,
+						$xx,
+						$o->pluck('id')->join('|')
+					));
+			}
+
 			// @todo Can the sender create it if it doesnt exist?
 			// @todo Can the sender send messages to this area?
 			// - Create it, or
diff --git a/tests/Feature/PacketTest.php b/tests/Feature/PacketTest.php
index d0ba9d3..d7eb6d7 100644
--- a/tests/Feature/PacketTest.php
+++ b/tests/Feature/PacketTest.php
@@ -67,7 +67,7 @@ class PacketTest extends TestCase
 
 		// This packet has an incorrect zone in the Origin
 		$f = new File(__DIR__.'/data/test_nomsgid_noorigin.pkt');
-		$pkt = Packet::open($f,$zo,FALSE);
+		$pkt = Packet::open($f,$this->so,FALSE);
 
 		$this->assertEquals(1,$pkt->count());
 
@@ -96,7 +96,7 @@ class PacketTest extends TestCase
 
 		// This packet has an incorrect zone in the Origin
 		$f = new File(__DIR__.'/data/test_msgid_origin.pkt');
-		$pkt = Packet::open($f,$zo,FALSE);
+		$pkt = Packet::open($f,$this->so,FALSE);
 
 		$this->assertEquals(1,$pkt->count());