diff --git a/.env.example b/.env.example
index 9bdb2f91..ec6550e9 100644
--- a/.env.example
+++ b/.env.example
@@ -1,5 +1,5 @@
 # Which images to pull for production deployment
-VERSION=2.4.2
+VERSION=2.4.3
 
 # Impact containers names, see
 # https://docs.docker.com/compose/how-tos/environment-variables/envvars/#compose_project_name
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 09b475d9..4cffdb7f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,17 @@
 # Changelog of AgentJ
 
+## 2026-01-16 - 2.4.3
+
+### Bug fixes
+
+- Fix sorting messages by recipient address ([e03a9501](https://github.com/Probesys/agentj/commit/e03a9501))
+- Don't mark initial user as an alias of himself when importing from M365 ([ed4cff1e](https://github.com/Probesys/agentj/commit/ed4cff1e))
+- Fix checking proxy address when importing alias from M365 ([927adcc7](https://github.com/Probesys/agentj/commit/927adcc7))
+
+### Maintenance
+
+- Refactor creation of aliases ([f24fb50c](https://github.com/Probesys/agentj/commit/f24fb50c))
+
 ## 2025-12-19 - 2.4.2
 
 ### Bug fixes
diff --git a/app/migrations/Version20260115151631.php b/app/migrations/Version20260115151631.php
new file mode 100644
index 00000000..851e32e9
--- /dev/null
+++ b/app/migrations/Version20260115151631.php
@@ -0,0 +1,26 @@
+<?php
+
+declare(strict_types=1);
+
+namespace DoctrineMigrations;
+
+use Doctrine\DBAL\Schema\Schema;
+use Doctrine\Migrations\AbstractMigration;
+
+final class Version20260115151631 extends AbstractMigration
+{
+    public function getDescription(): string
+    {
+        return 'Fix M365 users marked as aliases of themselves.';
+    }
+
+    public function up(Schema $schema): void
+    {
+        $this->addSql('UPDATE users SET original_user_id = null WHERE original_user_id = id');
+    }
+
+    public function down(Schema $schema): void
+    {
+        // Do nothing on purpose
+    }
+}
diff --git a/app/src/Command/Office365ImportCommand.php b/app/src/Command/Office365ImportCommand.php
index 77aed2ac..275f0a03 100644
--- a/app/src/Command/Office365ImportCommand.php
+++ b/app/src/Command/Office365ImportCommand.php
@@ -7,6 +7,7 @@
 use App\Entity\Office365Connector;
 use App\Entity\User as User;
 use App\Service\MailaddrService;
+use App\Util\Email;
 use Doctrine\ORM\EntityManagerInterface;
 use GuzzleHttp\Client;
 use GuzzleHttp\Exception\GuzzleException;
@@ -176,25 +177,48 @@ private function importUsers(string $token): void
     private function addAliases(User $user, array $proxyAdresses): array
     {
         $aliases = [];
-        foreach ($proxyAdresses as $proxyAdresse) {
-            if (strpos($proxyAdresse, "smtp") !== false) {
-                $aliasEmail = explode('smtp:', $proxyAdresse)[1];
-                $domainAlias = explode('@', $aliasEmail)[1];
-                if ($domainAlias == $this->connector->getDomain()->getDomain()) {
-                    $alias = $this->em->getRepository(User::class)->findOneBy(['email' => $aliasEmail]);
-                    if (!$alias) {
-                        $alias = clone $user;
-                    }
-                    $alias->setUid(null);
-                    $alias->setEmail($aliasEmail);
-                    $alias->setUserName($aliasEmail);
-                    $alias->setOriginalUser($user);
-                    $alias->setOriginConnector($this->connector);
-                    $this->em->persist($alias);
-
-                    $aliases[] = $alias;
-                }
+        foreach ($proxyAdresses as $proxyAdress) {
+            if (!str_starts_with(strtolower($proxyAdress), 'smtp:')) {
+                continue;
+            }
+
+            $aliasEmail = substr($proxyAdress, strlen('smtp:'));
+            if (!Email::validate($aliasEmail)) {
+                continue;
             }
+
+            // Don't mark the initial user as an alias of himself
+            if ($aliasEmail === $user->getEmail()) {
+                continue;
+            }
+
+            // Get the domain associated to the email address
+            $domainName = Email::extractDomain($aliasEmail);
+            if (!$domainName) {
+                continue;
+            }
+
+            $domain = $this->em->getRepository(Domain::class)->findOneByDomain($domainName);
+            if (!$domain || $domain->getId() !== $this->connector->getDomain()->getId()) {
+                continue;
+            }
+
+            // Create the alias if it doesn't exist yet
+            $alias = $this->em->getRepository(User::class)->findOneBy(['email' => $aliasEmail]);
+            if (!$alias) {
+                $alias = new User();
+                $alias->setOriginConnector($this->connector);
+            }
+
+            // And update information
+            $alias->setEmail($aliasEmail);
+            $alias->setUsername($aliasEmail);
+            $alias->setOriginalUser($user);
+            $alias->setDomain($domain);
+
+            $this->em->persist($alias);
+
+            $aliases[] = $alias;
         }
         return $aliases;
     }
diff --git a/app/templates/message/index.html.twig b/app/templates/message/index.html.twig
index efb72042..aea86b8b 100644
--- a/app/templates/message/index.html.twig
+++ b/app/templates/message/index.html.twig
@@ -35,7 +35,7 @@
                         {% endif %}
                         {% if is_granted('ROLE_ADMIN') %}
                             <th>
-                                {{ knp_pagination_sortable(messagesRecipients, 'Message.Recipient'|trans,'m.fromAddr') }}
+                                {{ knp_pagination_sortable(messagesRecipients, 'Message.Recipient'|trans,'maddr.email') }}
                             </th>
                         {% endif %}
                         {#            <th>{{ 'Message.Status'|trans() }}</th> #}