diff --git a/server/mailserver/mail/mail.go b/server/mailserver/mail/mail.go
index 71a470e9..4c63dbd9 100644
--- a/server/mailserver/mail/mail.go
+++ b/server/mailserver/mail/mail.go
@@ -95,7 +95,7 @@ func (this *mail) fillMailDto(hum common.Player, p *common.MailDto) bool {
 	p.Subject = this.subject
 	p.Content = this.content
 	//p.Flags
-	if hum.IsUnread(this) {
+	if !hum.IsUnread(this) {
 		p.Flags = 1 << 0
 	} else {
 		p.Flags = 0
diff --git a/server/mailserver/mail/mailmgr.go b/server/mailserver/mail/mailmgr.go
index c0e7976a..42d19ae8 100644
--- a/server/mailserver/mail/mailmgr.go
+++ b/server/mailserver/mail/mailmgr.go
@@ -275,7 +275,7 @@ func (this *mailMgr) getMail(mailId string) common.Mail {
 }
 
 func (this *mailMgr) internalGetMail(mailId string) *mail {
-	if p, ok := this.idHash.Load(mailId); ok {
+	if p, ok := this.idHash.Load(q5.ToInt64(mailId)); ok {
 		return p.(*mail)
 	} else {
 		return nil
diff --git a/server/mailserver/player/player.go b/server/mailserver/player/player.go
index 426ba728..754ec055 100644
--- a/server/mailserver/player/player.go
+++ b/server/mailserver/player/player.go
@@ -164,7 +164,7 @@ func (this* player) IsReadable(m common.Mail) bool {
 func (this* player) IsUnread(m common.Mail) bool {
 	mi := this.getInbox(m.GetMailId())
 	if mi != nil {
-		return mi.state != constant.INBOX_STATE_NONE
+		return mi.state == constant.INBOX_STATE_NONE
 	}
 	return true
 }