diff --git a/FAQ.md b/FAQ.md
index 76e13788bf..d56a68cbb3 100644
--- a/FAQ.md
+++ b/FAQ.md
@@ -2625,7 +2625,10 @@ Some common header conditions (regex):
 
 * *.&ast;Auto-Submitted:.&ast;* [RFC3834](https://tools.ietf.org/html/rfc3834)
 * *.&ast;List-Unsubscribe:.&ast;* [RFC3834](https://datatracker.ietf.org/doc/html/rfc2369)
-* *.&ast;Content-Type: multipart/report.&ast;* [RFC3462](https://tools.ietf.org/html/rfc3462)
+* *.&ast;Content-Type:.&ast;multipart/report.&ast;* [RFC3462](https://tools.ietf.org/html/rfc3462)
+* *.&ast;Content-Type:.&ast;multipart/signed.&ast;* PGP or S/MIME signed
+* *.&ast;Content-Type:.&ast;multipart/encrypted.&ast;* PGP encrypted
+* *.&ast;Content-Type:.&ast;application/pkcs7-mime.&ast;* S/MIME encrypted
 
 To match *set* IMAP flags (keywords) via a header condition (since version 1.1777):