change encoding

config/packages/doctrine.yaml

@@ -4,7 +4,10 @@ doctrine:
 
         # IMPORTANT: You MUST configure your server version,
         # either here or in the DATABASE_URL env var (see .env file)
-        charset: UTF8
+        charset: utf8mb4
+        default_table_options:
+            charset: utf8mb4
+            collate: utf8mb4_unicode_ci
         #server_version: '5.7'
     orm:
         auto_generate_proxy_classes: true

src/Entity/Mail.php

@@ -10,6 +10,7 @@ use Doctrine\ORM\Mapping as ORM;
 
 /**
  * @ORM\Entity(repositoryClass=MailRepository::class)
+ * @ORM\Table("mail", options={"collate"="utf8mb4_unicode_ci", "charset"="utf8mb4"})
  * @ORM\HasLifecycleCallbacks
  */
 class Mail

src/Entity/MailAttachment.php

@@ -7,6 +7,7 @@ use Doctrine\ORM\Mapping as ORM;
 
 /**
  * @ORM\Entity(repositoryClass=MailAttachmentRepository::class)
+ * @ORM\Table("mail_attachment", options={"collate"="utf8mb4_unicode_ci", "charset"="utf8mb4"})
  */
 class MailAttachment
 {

src/Entity/Mailing.php

@@ -10,6 +10,7 @@ use Doctrine\ORM\Mapping as ORM;
 
 /**
  * @ORM\Entity(repositoryClass=MailingRepository::class)
+ * @ORM\Table("mailing", options={"collate"="utf8mb4_unicode_ci", "charset"="utf8mb4"})
  * @ORM\HasLifecycleCallbacks
  */