diff --git a/FAQ.md b/FAQ.md
index 3d71bc94ee..04ce525e58 100644
--- a/FAQ.md
+++ b/FAQ.md
@@ -3392,6 +3392,9 @@ Instead, the email provider/server is responsible for backups.
 
 If you want to make a backup yourself, you could use a tool like [imapsync](https://imapsync.lamiral.info/).
 
+Since version 1.1556 it is possible to export all messages of a POP3 folder in mbox format according to [RFC4155](https://www.ietf.org/rfc/rfc4155.txt),
+which might be useful to save sent messages if the email server doesn't.
+
 If you want to import an mbox file to an existing email account,
 you can use Thunderbird on a desktop computer and the [ImportExportTools](https://addons.thunderbird.net/nl/thunderbird/addon/importexporttools/) add-on.