diff --git a/utils/email.go b/utils/email.go
index ff86db3..8d5a33e 100644
--- a/utils/email.go
+++ b/utils/email.go
@@ -109,7 +109,7 @@ func (e *Email) Content(threadID id.EventID, options *ContentOptions) *event.Con
 func (e *Email) Compose(privkey string) string {
 	var data strings.Builder
 
-	domain := strings.SplitN(e.From, "@", 2)[0]
+	domain := strings.SplitN(e.From, "@", 2)[1]
 	data.WriteString("From: ")
 	data.WriteString(e.From)
 	data.WriteString("\r\n")