diff --git a/config/version b/config/version
index 9eadd6ba..d2c4b271 100644
--- a/config/version
+++ b/config/version
@@ -1 +1 @@
-1.8.6
\ No newline at end of file
+1.8.7
\ No newline at end of file
diff --git a/web/service/inbound.go b/web/service/inbound.go
index e6a4d241..1f29d1b7 100644
--- a/web/service/inbound.go
+++ b/web/service/inbound.go
@@ -98,8 +98,9 @@ func (s *InboundService) getAllEmails() ([]string, error) {
 }
 
 func (s *InboundService) contains(slice []string, str string) bool {
+	lowerStr := strings.ToLower(str)
 	for _, s := range slice {
-		if s == str {
+		if strings.ToLower(s) == lowerStr {
 			return true
 		}
 	}