+ # Set defaults & headers
+ $self->{charset} ||= Common::DEFAULT_CHARSET;
+ $self->{contenttype} ||= "text/plain";
+ $self->{headers} = [
+ Subject => $self->{subject},
+ 'Message-ID' => $self->_create_message_id,
+ 'X-Mailer' => "kivitendo $self->{version}",
+ ];
+
+ # Clean up To/Cc/Bcc address fields
+ $self->_cleanup_addresses;
+ $self->_create_address_headers;