diff --git a/src/pretix/settings.py b/src/pretix/settings.py
index ade511d1b5..1a68d21e99 100644
--- a/src/pretix/settings.py
+++ b/src/pretix/settings.py
@@ -870,7 +870,7 @@ DATA_UPLOAD_MAX_MEMORY_SIZE = 10 * 1024 * 1024  # 10 MB
 # File sizes are in MiB
 FILE_UPLOAD_MAX_SIZE_IMAGE = 1024 * 1024 * config.getint("pretix_file_upload", "max_size_image", fallback=10)
 FILE_UPLOAD_MAX_SIZE_FAVICON = 1024 * 1024 * config.getint("pretix_file_upload", "max_size_favicon", fallback=1)
-FILE_UPLOAD_MAX_SIZE_EMAIL_ATTACHMENT = 1024 * 1024 * config.getint("pretix_file_upload", "max_size_email_attachment", fallback=10)
+FILE_UPLOAD_MAX_SIZE_EMAIL_ATTACHMENT = 1024 * 1024 * config.getint("pretix_file_upload", "max_size_email_attachment", fallback=5)
 FILE_UPLOAD_MAX_SIZE_EMAIL_AUTO_ATTACHMENT = 1024 * 1024 * config.getint("pretix_file_upload", "max_size_email_auto_attachment", fallback=1)
 FILE_UPLOAD_MAX_SIZE_OTHER = 1024 * 1024 * config.getint("pretix_file_upload", "max_size_other", fallback=10)