diff --git a/src/Symfony/Component/Notifier/Bridge/AllMySms/AllMySmsTransport.php b/src/Symfony/Component/Notifier/Bridge/AllMySms/AllMySmsTransport.php
index 524ff0ce3db08..fab94304bf015 100644
--- a/src/Symfony/Component/Notifier/Bridge/AllMySms/AllMySmsTransport.php
+++ b/src/Symfony/Component/Notifier/Bridge/AllMySms/AllMySmsTransport.php
@@ -18,6 +18,7 @@
 use Symfony\Component\Notifier\Message\SmsMessage;
 use Symfony\Component\Notifier\Transport\AbstractTransport;
 use Symfony\Contracts\EventDispatcher\EventDispatcherInterface;
+use Symfony\Contracts\HttpClient\Exception\TransportExceptionInterface;
 use Symfony\Contracts\HttpClient\HttpClientInterface;
 
 /**
@@ -70,7 +71,13 @@ protected function doSend(MessageInterface $message): SentMessage
             ],
         ]);
 
-        if (201 !== $response->getStatusCode()) {
+        try {
+            $statusCode = $response->getStatusCode();
+        } catch (TransportExceptionInterface $e) {
+            throw new TransportException('Could not reach the remote AllMySms server.', $response, 0, $e);
+        }
+
+        if (201 !== $statusCode) {
             $error = $response->toArray(false);
 
             throw new TransportException(sprintf('Unable to send the SMS: "%s" (%s).', $error['description'], $error['code']), $response);
diff --git a/src/Symfony/Component/Notifier/Bridge/Clickatell/ClickatellTransport.php b/src/Symfony/Component/Notifier/Bridge/Clickatell/ClickatellTransport.php
index 5584e9d3ba7f8..621ab9d430675 100644
--- a/src/Symfony/Component/Notifier/Bridge/Clickatell/ClickatellTransport.php
+++ b/src/Symfony/Component/Notifier/Bridge/Clickatell/ClickatellTransport.php
@@ -18,6 +18,7 @@
 use Symfony\Component\Notifier\Message\SmsMessage;
 use Symfony\Component\Notifier\Transport\AbstractTransport;
 use Symfony\Contracts\EventDispatcher\EventDispatcherInterface;
+use Symfony\Contracts\HttpClient\Exception\TransportExceptionInterface;
 use Symfony\Contracts\HttpClient\HttpClientInterface;
 
 /**
@@ -74,7 +75,13 @@ protected function doSend(MessageInterface $message): SentMessage
             ],
         ]);
 
-        if (202 === $response->getStatusCode()) {
+        try {
+            $statusCode = $response->getStatusCode();
+        } catch (TransportExceptionInterface $e) {
+            throw new TransportException('Could not reach the remote Clicktell server.', $response, 0, $e);
+        }
+
+        if (202 === $statusCode) {
             $result = $response->toArray();
             $sentMessage = new SentMessage($message, (string) $this);
             $sentMessage->setMessageId($result['data']['message'][0]['apiMessageId']);
diff --git a/src/Symfony/Component/Notifier/Bridge/GatewayApi/GatewayApiTransport.php b/src/Symfony/Component/Notifier/Bridge/GatewayApi/GatewayApiTransport.php
index c8e4393dfa461..0ed6ec9cb4f9e 100644
--- a/src/Symfony/Component/Notifier/Bridge/GatewayApi/GatewayApiTransport.php
+++ b/src/Symfony/Component/Notifier/Bridge/GatewayApi/GatewayApiTransport.php
@@ -18,6 +18,7 @@
 use Symfony\Component\Notifier\Message\SmsMessage;
 use Symfony\Component\Notifier\Transport\AbstractTransport;
 use Symfony\Contracts\EventDispatcher\EventDispatcherInterface;
+use Symfony\Contracts\HttpClient\Exception\TransportExceptionInterface;
 use Symfony\Contracts\HttpClient\HttpClientInterface;
 
 /**
@@ -65,7 +66,12 @@ protected function doSend(MessageInterface $message): SentMessage
             ],
         ]);
 
-        $statusCode = $response->getStatusCode();
+        try {
+            $statusCode = $response->getStatusCode();
+        } catch (TransportExceptionInterface $e) {
+            throw new TransportException('Could not reach the remote GatewayApi server.', $response, 0, $e);
+        }
+
         if (200 !== $statusCode) {
             throw new TransportException(sprintf('Unable to send the SMS: error %d.', $statusCode), $response);
         }
diff --git a/src/Symfony/Component/Notifier/Bridge/Gitter/GitterTransport.php b/src/Symfony/Component/Notifier/Bridge/Gitter/GitterTransport.php
index 1c309d255c6e7..b8d88e7f5d88d 100644
--- a/src/Symfony/Component/Notifier/Bridge/Gitter/GitterTransport.php
+++ b/src/Symfony/Component/Notifier/Bridge/Gitter/GitterTransport.php
@@ -18,6 +18,7 @@
 use Symfony\Component\Notifier\Message\SentMessage;
 use Symfony\Component\Notifier\Transport\AbstractTransport;
 use Symfony\Contracts\EventDispatcher\EventDispatcherInterface;
+use Symfony\Contracts\HttpClient\Exception\TransportExceptionInterface;
 use Symfony\Contracts\HttpClient\HttpClientInterface;
 
 /**
@@ -66,7 +67,11 @@ protected function doSend(MessageInterface $message): SentMessage
             ],
         ]);
 
-        $result = $response->toArray(false);
+        try {
+            $result = $response->toArray(false);
+        } catch (TransportExceptionInterface $e) {
+            throw new TransportException('Could not reach the remote Gitter server.', $response, 0, $e);
+        }
 
         if (200 !== $response->getStatusCode()) {
             throw new TransportException(sprintf('Unable to post the Gitter message: "%s".', $result['error']), $response);
diff --git a/src/Symfony/Component/Notifier/Bridge/Iqsms/IqsmsTransport.php b/src/Symfony/Component/Notifier/Bridge/Iqsms/IqsmsTransport.php
index a83aee83ebb50..91240bcea6c53 100644
--- a/src/Symfony/Component/Notifier/Bridge/Iqsms/IqsmsTransport.php
+++ b/src/Symfony/Component/Notifier/Bridge/Iqsms/IqsmsTransport.php
@@ -18,6 +18,7 @@
 use Symfony\Component\Notifier\Message\SmsMessage;
 use Symfony\Component\Notifier\Transport\AbstractTransport;
 use Symfony\Contracts\EventDispatcher\EventDispatcherInterface;
+use Symfony\Contracts\HttpClient\Exception\TransportExceptionInterface;
 use Symfony\Contracts\HttpClient\HttpClientInterface;
 
 /**
@@ -71,7 +72,12 @@ protected function doSend(MessageInterface $message): SentMessage
             ],
         ]);
 
-        $result = $response->toArray(false);
+        try {
+            $result = $response->toArray(false);
+        } catch (TransportExceptionInterface $e) {
+            throw new TransportException('Could not reach the remote Iqsms server.', $response, 0, $e);
+        }
+
         foreach ($result['messages'] as $msg) {
             if ('accepted' !== $msg['status']) {
                 throw new TransportException(sprintf('Unable to send the SMS: "%s".', $msg['status']), $response);
diff --git a/src/Symfony/Component/Notifier/Bridge/LightSms/LightSmsTransport.php b/src/Symfony/Component/Notifier/Bridge/LightSms/LightSmsTransport.php
index cb161cd419376..3cb74e7fa695b 100644
--- a/src/Symfony/Component/Notifier/Bridge/LightSms/LightSmsTransport.php
+++ b/src/Symfony/Component/Notifier/Bridge/LightSms/LightSmsTransport.php
@@ -18,6 +18,7 @@
 use Symfony\Component\Notifier\Message\SmsMessage;
 use Symfony\Component\Notifier\Transport\AbstractTransport;
 use Symfony\Contracts\EventDispatcher\EventDispatcherInterface;
+use Symfony\Contracts\HttpClient\Exception\TransportExceptionInterface;
 use Symfony\Contracts\HttpClient\HttpClientInterface;
 
 /**
@@ -117,7 +118,13 @@ protected function doSend(MessageInterface $message): SentMessage
             ]
         );
 
-        if (200 !== $response->getStatusCode()) {
+        try {
+            $statusCode = $response->getStatusCode();
+        } catch (TransportExceptionInterface $e) {
+            throw new TransportException('Could not reach the remote LightSms server.', $response, 0, $e);
+        }
+
+        if (200 !== $statusCode) {
             throw new TransportException('Unable to send the SMS.', $response);
         }
 
diff --git a/src/Symfony/Component/Notifier/Bridge/MessageBird/MessageBirdTransport.php b/src/Symfony/Component/Notifier/Bridge/MessageBird/MessageBirdTransport.php
index 9a140ac7bb65f..cb56f6a843c0c 100644
--- a/src/Symfony/Component/Notifier/Bridge/MessageBird/MessageBirdTransport.php
+++ b/src/Symfony/Component/Notifier/Bridge/MessageBird/MessageBirdTransport.php
@@ -18,6 +18,7 @@
 use Symfony\Component\Notifier\Message\SmsMessage;
 use Symfony\Component\Notifier\Transport\AbstractTransport;
 use Symfony\Contracts\EventDispatcher\EventDispatcherInterface;
+use Symfony\Contracts\HttpClient\Exception\TransportExceptionInterface;
 use Symfony\Contracts\HttpClient\HttpClientInterface;
 
 /**
@@ -64,7 +65,13 @@ protected function doSend(MessageInterface $message): SentMessage
             ],
         ]);
 
-        if (201 !== $response->getStatusCode()) {
+        try {
+            $statusCode = $response->getStatusCode();
+        } catch (TransportExceptionInterface $e) {
+            throw new TransportException('Could not reach the remote MessageBird server.', $response, 0, $e);
+        }
+
+        if (201 !== $statusCode) {
             if (!isset($response->toArray(false)['errors'])) {
                 throw new TransportException('Unable to send the SMS.', $response);
             }
diff --git a/src/Symfony/Component/Notifier/Bridge/MicrosoftTeams/MicrosoftTeamsTransport.php b/src/Symfony/Component/Notifier/Bridge/MicrosoftTeams/MicrosoftTeamsTransport.php
index ccd0f4cdf770a..28ae3440dede6 100644
--- a/src/Symfony/Component/Notifier/Bridge/MicrosoftTeams/MicrosoftTeamsTransport.php
+++ b/src/Symfony/Component/Notifier/Bridge/MicrosoftTeams/MicrosoftTeamsTransport.php
@@ -18,6 +18,7 @@
 use Symfony\Component\Notifier\Message\SentMessage;
 use Symfony\Component\Notifier\Transport\AbstractTransport;
 use Symfony\Contracts\EventDispatcher\EventDispatcherInterface;
+use Symfony\Contracts\HttpClient\Exception\TransportExceptionInterface;
 use Symfony\Contracts\HttpClient\HttpClientInterface;
 
 /**
@@ -64,6 +65,12 @@ protected function doSend(MessageInterface $message): SentMessage
             ],
         ]);
 
+        try {
+            $statusCode = $response->getStatusCode();
+        } catch (TransportExceptionInterface $e) {
+            throw new TransportException('Could not reach the remote MicrosoftTeams server.', $response, 0, $e);
+        }
+
         $requestId = $response->getHeaders(false)['request-id'][0] ?? null;
         if (null === $requestId) {
             $originalContent = $message->getSubject();
@@ -71,7 +78,7 @@ protected function doSend(MessageInterface $message): SentMessage
             throw new TransportException(sprintf('Unable to post the Microsoft Teams message: "%s" (request-id not found).', $originalContent), $response);
         }
 
-        if (200 !== $response->getStatusCode()) {
+        if (200 !== $statusCode) {
             $errorMessage = $response->getContent(false);
             $originalContent = $message->getSubject();
 
diff --git a/src/Symfony/Component/Notifier/Bridge/Octopush/OctopushTransport.php b/src/Symfony/Component/Notifier/Bridge/Octopush/OctopushTransport.php
index 7e8b72f749698..be41b5c91092e 100644
--- a/src/Symfony/Component/Notifier/Bridge/Octopush/OctopushTransport.php
+++ b/src/Symfony/Component/Notifier/Bridge/Octopush/OctopushTransport.php
@@ -18,6 +18,7 @@
 use Symfony\Component\Notifier\Message\SmsMessage;
 use Symfony\Component\Notifier\Transport\AbstractTransport;
 use Symfony\Contracts\EventDispatcher\EventDispatcherInterface;
+use Symfony\Contracts\HttpClient\Exception\TransportExceptionInterface;
 use Symfony\Contracts\HttpClient\HttpClientInterface;
 
 /**
@@ -74,7 +75,13 @@ protected function doSend(MessageInterface $message): SentMessage
             ],
         ]);
 
-        if (200 !== $response->getStatusCode()) {
+        try {
+            $statusCode = $response->getStatusCode();
+        } catch (TransportExceptionInterface $e) {
+            throw new TransportException('Could not reach the remote Octopush server.', $response, 0, $e);
+        }
+
+        if (200 !== $statusCode) {
             $error = $response->toArray(false);
 
             throw new TransportException('Unable to send the SMS: '.$error['error_code'], $response);
diff --git a/src/Symfony/Component/Notifier/Bridge/SmsBiuras/SmsBiurasTransport.php b/src/Symfony/Component/Notifier/Bridge/SmsBiuras/SmsBiurasTransport.php
index ad24d3cfa37b0..b47c5c216eba0 100644
--- a/src/Symfony/Component/Notifier/Bridge/SmsBiuras/SmsBiurasTransport.php
+++ b/src/Symfony/Component/Notifier/Bridge/SmsBiuras/SmsBiurasTransport.php
@@ -18,6 +18,7 @@
 use Symfony\Component\Notifier\Message\SmsMessage;
 use Symfony\Component\Notifier\Transport\AbstractTransport;
 use Symfony\Contracts\EventDispatcher\EventDispatcherInterface;
+use Symfony\Contracts\HttpClient\Exception\TransportExceptionInterface;
 use Symfony\Contracts\HttpClient\HttpClientInterface;
 
 /**
@@ -89,7 +90,13 @@ protected function doSend(MessageInterface $message): SentMessage
             ],
         ]);
 
-        if (200 !== $response->getStatusCode()) {
+        try {
+            $statusCode = $response->getStatusCode();
+        } catch (TransportExceptionInterface $e) {
+            throw new TransportException('Could not reach the remote SmsBiuras server.', $response, 0, $e);
+        }
+
+        if (200 !== $statusCode) {
             throw new TransportException('Unable to send the SMS.', $response);
         }
 
diff --git a/src/Symfony/Component/Notifier/Bridge/SpotHit/SpotHitTransport.php b/src/Symfony/Component/Notifier/Bridge/SpotHit/SpotHitTransport.php
index 5767d17685681..13e56399b9f7e 100644
--- a/src/Symfony/Component/Notifier/Bridge/SpotHit/SpotHitTransport.php
+++ b/src/Symfony/Component/Notifier/Bridge/SpotHit/SpotHitTransport.php
@@ -19,6 +19,8 @@
 use Symfony\Component\Notifier\Transport\AbstractTransport;
 use Symfony\Contracts\EventDispatcher\EventDispatcherInterface;
 use Symfony\Contracts\HttpClient\Exception\ClientExceptionInterface;
+use Symfony\Contracts\HttpClient\Exception\DecodingExceptionInterface;
+use Symfony\Contracts\HttpClient\Exception\HttpExceptionInterface;
 use Symfony\Contracts\HttpClient\Exception\RedirectionExceptionInterface;
 use Symfony\Contracts\HttpClient\Exception\ServerExceptionInterface;
 use Symfony\Contracts\HttpClient\Exception\TransportExceptionInterface;
@@ -81,7 +83,13 @@ protected function doSend(MessageInterface $message): SentMessage
             ],
         ]);
 
-        $data = json_decode($response->getContent(), true);
+        try {
+            $data = $response->toArray();
+        } catch (TransportExceptionInterface $e) {
+            throw new TransportException('Could not reach the remote SpotHit server.', $response, 0, $e);
+        } catch (HttpExceptionInterface | DecodingExceptionInterface $e) {
+            throw new TransportException('Unexpected reply from the remote SpotHit server.', $response, 0, $e);
+        }
 
         if (!$data['resultat']) {
             $errors = \is_array($data['erreurs']) ? implode(',', $data['erreurs']) : $data['erreurs'];