diff --git a/migrations/Version20260519211723.php b/migrations/Version20260519211723.php
new file mode 100644
index 0000000..90fec2e
--- /dev/null
+++ b/migrations/Version20260519211723.php
@@ -0,0 +1,115 @@
+<?php
+
+declare(strict_types=1);
+
+namespace DoctrineMigrations;
+
+use Doctrine\DBAL\Schema\Schema;
+use Doctrine\Migrations\AbstractMigration;
+
+final class Version20260519211723 extends AbstractMigration
+{
+    public function getDescription(): string
+    {
+        return 'Mail integration: create mail_configuration, mail_folder, mail_message, task_mail_link tables';
+    }
+
+    public function up(Schema $schema): void
+    {
+        $this->addSql(<<<'SQL'
+                CREATE TABLE mail_configuration (
+                    id INT GENERATED BY DEFAULT AS IDENTITY NOT NULL,
+                    protocol VARCHAR(10) NOT NULL,
+                    imap_host VARCHAR(255) DEFAULT NULL,
+                    imap_port INT NOT NULL,
+                    imap_encryption VARCHAR(10) NOT NULL,
+                    smtp_host VARCHAR(255) DEFAULT NULL,
+                    smtp_port INT NOT NULL,
+                    smtp_encryption VARCHAR(10) NOT NULL,
+                    username VARCHAR(255) DEFAULT NULL,
+                    encrypted_password TEXT DEFAULT NULL,
+                    sent_folder_path VARCHAR(255) NOT NULL,
+                    enabled BOOLEAN NOT NULL,
+                    PRIMARY KEY (id)
+                )
+            SQL);
+
+        $this->addSql(<<<'SQL'
+                CREATE TABLE mail_folder (
+                    id INT GENERATED BY DEFAULT AS IDENTITY NOT NULL,
+                    path VARCHAR(500) NOT NULL,
+                    display_name VARCHAR(255) NOT NULL,
+                    parent_path VARCHAR(500) DEFAULT NULL,
+                    unread_count INT NOT NULL,
+                    total_count INT NOT NULL,
+                    last_synced_at TIMESTAMP(0) WITH TIME ZONE DEFAULT NULL,
+                    PRIMARY KEY (id)
+                )
+            SQL);
+
+        $this->addSql('CREATE UNIQUE INDEX UNIQ_319BB6A6B548B0F ON mail_folder (path)');
+        $this->addSql('CREATE INDEX idx_mail_folder_parent_path ON mail_folder (parent_path)');
+
+        $this->addSql(<<<'SQL'
+                CREATE TABLE mail_message (
+                    id INT GENERATED BY DEFAULT AS IDENTITY NOT NULL,
+                    message_id VARCHAR(500) NOT NULL,
+                    folder_id INT NOT NULL,
+                    uid INT NOT NULL,
+                    subject VARCHAR(500) DEFAULT NULL,
+                    from_address VARCHAR(255) NOT NULL,
+                    from_name VARCHAR(255) DEFAULT NULL,
+                    to_addresses JSON NOT NULL,
+                    cc_addresses JSON DEFAULT NULL,
+                    sent_at TIMESTAMP(0) WITH TIME ZONE NOT NULL,
+                    is_read BOOLEAN NOT NULL,
+                    is_flagged BOOLEAN NOT NULL,
+                    has_attachments BOOLEAN NOT NULL,
+                    snippet TEXT DEFAULT NULL,
+                    synced_at TIMESTAMP(0) WITH TIME ZONE NOT NULL,
+                    PRIMARY KEY (id)
+                )
+            SQL);
+
+        $this->addSql('CREATE UNIQUE INDEX UNIQ_6C00B110537A1329 ON mail_message (message_id)');
+        $this->addSql('CREATE UNIQUE INDEX uq_mail_message_folder_uid ON mail_message (folder_id, uid)');
+        $this->addSql('CREATE INDEX IDX_6C00B110162CB942 ON mail_message (folder_id)');
+        $this->addSql('CREATE INDEX idx_mail_message_sent_at ON mail_message (sent_at)');
+        $this->addSql('CREATE INDEX idx_mail_message_is_read ON mail_message (is_read)');
+        $this->addSql('ALTER TABLE mail_message ADD CONSTRAINT FK_6C00B110162CB942 FOREIGN KEY (folder_id) REFERENCES mail_folder (id) ON DELETE CASCADE NOT DEFERRABLE');
+
+        $this->addSql(<<<'SQL'
+                CREATE TABLE task_mail_link (
+                    id INT GENERATED BY DEFAULT AS IDENTITY NOT NULL,
+                    task_id INT NOT NULL,
+                    mail_message_id INT NOT NULL,
+                    linked_at TIMESTAMP(0) WITH TIME ZONE NOT NULL,
+                    linked_by_id INT DEFAULT NULL,
+                    PRIMARY KEY (id)
+                )
+            SQL);
+
+        $this->addSql('CREATE UNIQUE INDEX uq_task_mail_link ON task_mail_link (task_id, mail_message_id)');
+        $this->addSql('CREATE INDEX IDX_E4FDC7C98DB60186 ON task_mail_link (task_id)');
+        $this->addSql('CREATE INDEX IDX_E4FDC7C987B9F9D5 ON task_mail_link (mail_message_id)');
+        $this->addSql('CREATE INDEX IDX_E4FDC7C91AE3CFF3 ON task_mail_link (linked_by_id)');
+        $this->addSql('ALTER TABLE task_mail_link ADD CONSTRAINT FK_E4FDC7C98DB60186 FOREIGN KEY (task_id) REFERENCES task (id) ON DELETE CASCADE NOT DEFERRABLE');
+        $this->addSql('ALTER TABLE task_mail_link ADD CONSTRAINT FK_E4FDC7C987B9F9D5 FOREIGN KEY (mail_message_id) REFERENCES mail_message (id) ON DELETE CASCADE NOT DEFERRABLE');
+        $this->addSql('ALTER TABLE task_mail_link ADD CONSTRAINT FK_E4FDC7C91AE3CFF3 FOREIGN KEY (linked_by_id) REFERENCES "user" (id) ON DELETE SET NULL NOT DEFERRABLE');
+    }
+
+    public function down(Schema $schema): void
+    {
+        $this->addSql('ALTER TABLE task_mail_link DROP CONSTRAINT FK_E4FDC7C98DB60186');
+        $this->addSql('ALTER TABLE task_mail_link DROP CONSTRAINT FK_E4FDC7C987B9F9D5');
+        $this->addSql('ALTER TABLE task_mail_link DROP CONSTRAINT FK_E4FDC7C91AE3CFF3');
+        $this->addSql('DROP TABLE task_mail_link');
+
+        $this->addSql('ALTER TABLE mail_message DROP CONSTRAINT FK_6C00B110162CB942');
+        $this->addSql('DROP TABLE mail_message');
+
+        $this->addSql('DROP TABLE mail_folder');
+
+        $this->addSql('DROP TABLE mail_configuration');
+    }
+}