diff --git a/server/mailserver/common/types.go b/server/mailserver/common/types.go
index e95c0ade..ce87938f 100644
--- a/server/mailserver/common/types.go
+++ b/server/mailserver/common/types.go
@@ -21,7 +21,7 @@ type MailDto struct {
 	MailType int32 `json:"mailtype"`
 	MailSubType int32 `json:"mailsubtype"`
 	Ext string `json:"ext"`
-	Attachment []*AttachmentDto `json:"attachments"`
+	Attachments []*AttachmentDto `json:"attachments"`
 }
 
 type App interface {
diff --git a/server/mailserver/mail/mail.go b/server/mailserver/mail/mail.go
index a377ce19..4c9775f8 100644
--- a/server/mailserver/mail/mail.go
+++ b/server/mailserver/mail/mail.go
@@ -100,6 +100,7 @@ func (this *mail) fillMailDto(p *common.MailDto) bool {
 	p.MailType = this.mailType
 	p.MailSubType = 0
 	p.Ext = ""
+	p.Attachments = make([]*common.AttachmentDto, 0)
 	for _, ele := range(this.attachments) {
 		attachment := new(common.AttachmentDto)
 		attachment.ItemId = ele.itemId