From 267d0dbf1f3f5ee8729e4717bc1bd53684c1f78a Mon Sep 17 00:00:00 2001
From: Thomas Oettli <spacefreak@noop.ch>
Date: Fri, 13 Nov 2020 09:07:52 +0100
Subject: [PATCH] remove surrogates from headers

---
 pymodmilter/__init__.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/pymodmilter/__init__.py b/pymodmilter/__init__.py
index 558145b..818ce15 100644
--- a/pymodmilter/__init__.py
+++ b/pymodmilter/__init__.py
@@ -341,8 +341,8 @@ class ModifyMilter(Milter.Base):
     def header(self, field, value):
         try:
             # remove surrogates
-            field = field.encode("ascii", errors="surrogateescape")
-            value = value.encode("ascii", errors="surrogateescape")
+            field = field.encode("ascii", errors="replace")
+            value = value.encode("ascii", errors="replace")
 
             self._fp.feed(field + b": " + value + b"\r\n")
         except Exception as e: