[Minor] Do not punish OpenPGP/MIME attachments

Fixes #1655

diff --git a/rules/headers_checks.lua b/rules/headers_checks.lua
index 585c97b0b2c61eeb96856a0808300a9620f4773f..8ee28e40b015a757c6aed773c18e9c431a72b20e 100644 (file)
--- a/rules/headers_checks.lua
+++ b/rules/headers_checks.lua
@@ -897,7 +897,10 @@ rspamd_config.CTYPE_MISSING_DISPOSITION = {
         local cd = p:get_header('Content-Disposition')
         if (not cd) or (cd and cd:lower():find('^attachment') == nil) then
           local ci = p:get_header('Content-ID')
-          if ci then return false end
+          if ci or (#parts > 1 and (cd and cd:find('filename=.+%.asc') ~= nil))
+          then
+            return false
+          end
           return true
         end
       end