diff --git a/digiwf-engine/digiwf-engine-service/src/main/java/de/muenchen/oss/digiwf/legacy/mailing/process/SendMailTemplateDelegate.java b/digiwf-engine/digiwf-engine-service/src/main/java/de/muenchen/oss/digiwf/legacy/mailing/process/SendMailTemplateDelegate.java
index a5227a5533..1a96dba362 100644
--- a/digiwf-engine/digiwf-engine-service/src/main/java/de/muenchen/oss/digiwf/legacy/mailing/process/SendMailTemplateDelegate.java
+++ b/digiwf-engine/digiwf-engine-service/src/main/java/de/muenchen/oss/digiwf/legacy/mailing/process/SendMailTemplateDelegate.java
@@ -65,6 +65,7 @@ public void execute(final DelegateExecution delegateExecution) throws Exception
                 .receivers(receivers)
                 .subject(subject)
                 .body(emailBody)
+                .htmlBody(true)
                 .replyTo(replyTo.orElse(null))
                 .sender(sender.orElse(null))
                 .attachments(fileAttachments)
diff --git a/digiwf-engine/digiwf-engine-service/src/main/java/de/muenchen/oss/digiwf/legacy/mailing/process/SendMailTemplateWithLinkDelegate.java b/digiwf-engine/digiwf-engine-service/src/main/java/de/muenchen/oss/digiwf/legacy/mailing/process/SendMailTemplateWithLinkDelegate.java
index cc471af6b1..351e3ca25f 100644
--- a/digiwf-engine/digiwf-engine-service/src/main/java/de/muenchen/oss/digiwf/legacy/mailing/process/SendMailTemplateWithLinkDelegate.java
+++ b/digiwf-engine/digiwf-engine-service/src/main/java/de/muenchen/oss/digiwf/legacy/mailing/process/SendMailTemplateWithLinkDelegate.java
@@ -67,6 +67,7 @@ public void execute(final DelegateExecution delegateExecution) throws Exception
                 .receivers(receivers)
                 .subject(subject)
                 .body(emailBody)
+                .htmlBody(true)
                 .replyTo(replyTo.orElse(null))
                 .attachments(fileAttachments)
                 .build();
diff --git a/digiwf-libs/digiwf-email/digiwf-email-api/src/main/java/de/muenchen/oss/digiwf/email/impl/DigiwfEmailApiImpl.java b/digiwf-libs/digiwf-email/digiwf-email-api/src/main/java/de/muenchen/oss/digiwf/email/impl/DigiwfEmailApiImpl.java
index 49e3ab1c2b..0346434c30 100644
--- a/digiwf-libs/digiwf-email/digiwf-email-api/src/main/java/de/muenchen/oss/digiwf/email/impl/DigiwfEmailApiImpl.java
+++ b/digiwf-libs/digiwf-email/digiwf-email-api/src/main/java/de/muenchen/oss/digiwf/email/impl/DigiwfEmailApiImpl.java
@@ -61,7 +61,7 @@ public void sendMail(@Valid Mail mail, String logoPath) throws MessagingExceptio
             mimeMessage.setReplyTo(InternetAddress.parse(mail.getReplyTo()));
         }
 
-        final var helper = new MimeMessageHelper(mimeMessage, true);
+        final var helper = new MimeMessageHelper(mimeMessage, true, StandardCharsets.UTF_8.name());
 
         helper.setSubject(mail.getSubject());
         helper.setText(mail.getBody(), mail.isHtmlBody());