1 files changed, 3 insertions, 0 deletions

diff --git a/hosts/surtr/email/default.nix b/hosts/surtr/email/default.nix
index c993bb18..58cb76d9 100644
--- a/hosts/surtr/email/default.nix
+++ b/hosts/surtr/email/default.nix
@@ -355,7 +355,10 @@ in {
           maxproc = 0;
           args = [
             "-o" "header_checks=pcre:${pkgs.writeText "header_checks_submission" ''
+              if /^Received: /
+              !/by surtr\.yggdrasil\.li/ STRIP
               /^Received: from [^ ]+ \([^ ]+ [^ ]+\)\s+(.*)$/ REPLACE Received: $1
+              endif
             ''}"
           ];
         };