interimap: reformulation in manpage

diff --git a/interimap.md b/interimap.md
index 9d55d9e8c571493a903b4745f39a247c912f578b..7d119ab8e8260e8916c8ff7266d0a2cce59374ec 100644 (file)
--- a/interimap.md
+++ b/interimap.md
@@ -375,8 +375,9 @@ Valid options are:
 Supported extensions
 ====================
 
-Performance is better for servers supporting the following extensions to
-the [IMAP4rev1 protocol][RFC 3501]:
+`interimap` takes advantage of servers supporting the following
+extensions to the [IMAP4rev1 protocol][RFC 3501] (those marked as
+“recommended” give the most significant performance gain):
 
  * `LITERAL+` ([RFC 2088], recommended);
  * `MULTIAPPEND` ([RFC 3502], recommended);