Force posting to matrix to use IPv4 resolution

app/Notifications/Matrix/Echomail.php

@@ -45,12 +45,18 @@ class Echomail extends Matrix
 
 		$user = sprintf('@%s:%s',$username,config('matrix.server'));
 
+		// @todo We need to force IP4 as running clrghouz in a container without a proper IPv6 address is problematic
+		$matrix = Http::withToken(config('matrix.as_token'))
+			->withOptions([
+				CURLOPT_IPRESOLVE => CURL_IPRESOLVE_V4,
+			]);
+
 		// Set topic if it is different:
-		$subject = Http::withToken(config('matrix.as_token'))
+		$subject = $matrix
 			->get(sprintf('https://%s/_matrix/client/v3/rooms/%s/state/m.room.topic',config('matrix.server'),$room));
 
 		if (($x=preg_replace('/^RE:\s*/i','',$this->o->subject)) !== $subject->json('topic','Message from Matrix')) {
-			$topic = Http::withToken(config('matrix.as_token'))
+			$topic = $matrix
 				->put(sprintf('https://%s/_matrix/client/v3/rooms/%s/state/m.room.topic',config('matrix.server'),$room),[
 					'topic'=>$x,
 				]);
@@ -61,7 +67,7 @@ class Echomail extends Matrix
 
 		$omsg = preg_replace("/\r---.*$/U",'',$this->o->msg);
 
-		$msg = Http::withToken(config('matrix.as_token'))
+		$msg = $matrix
 			->withQueryParameters(['user_id'=>$user])
 			->post(sprintf('https://%s/_matrix/client/v3/rooms/%s/send/m.room.message',config('matrix.server'),$room),[
 				'msgtype'=>'m.text',
@@ -81,7 +87,7 @@ class Echomail extends Matrix
 				// If the user doesnt exist in matrix yet
 				if (str_starts_with($msg->json('error'),'Application service has not registered this user')) {
 					// Register user
-					$msg = Http::withToken(config('matrix.as_token'))
+					$msg = $matrix
 						->post(sprintf('https://%s/_matrix/client/v3/register',config('matrix.server')),[
 							'type'=>'m.login.application_service',
 							'username'=>$username,
@@ -94,7 +100,7 @@ class Echomail extends Matrix
 
 					// @todo Test that the user has been invited
 					// Invite user
-					$msg = Http::withToken(config('matrix.as_token'))
+					$msg = $matrix
 						//->withQueryParameters(['user_id'=>$user])
 						->post(sprintf('https://%s/_matrix/client/v3/rooms/%s/invite',config('matrix.server'),$room),[
 							'user_id'=>$user,
@@ -106,7 +112,7 @@ class Echomail extends Matrix
 					}
 
 					// Join as user
-					$msg = Http::withToken(config('matrix.as_token'))
+					$msg = $matrix
 						->withQueryParameters(['user_id'=>$user])
 						->post(sprintf('https://%s/_matrix/client/v3/rooms/%s/join',config('matrix.server'),$room),[
 							'user_id'=>$user,