imapc: Check for when to prefer LOGIN to AUTHENTICATE was wrong.

diff --git a/src/lib-imap-client/imapc-connection.c b/src/lib-imap-client/imapc-connection.c
index a9b15a6059e4bb1c1ef9d93ef5628194bcb5bb9b..244279f2720e711656716eef26c388650315d107 100644 (file)
--- a/src/lib-imap-client/imapc-connection.c
+++ b/src/lib-imap-client/imapc-connection.c
@@ -732,7 +732,7 @@ static void imapc_connection_authenticate(struct imapc_connection *conn)
        imapc_command_set_flags(cmd, IMAPC_COMMAND_FLAG_PRELOGIN);
 
        if ((set->master_user == NULL &&
-            need_literal(set->username) && need_literal(set->password)) ||
+            !need_literal(set->username) && !need_literal(set->password)) ||
            (conn->capabilities & IMAPC_CAPABILITY_AUTH_PLAIN) == 0) {
                /* We can use LOGIN command */
                imapc_command_sendf(cmd, "LOGIN %s %s",