1 files changed, 2 insertions, 0 deletions
diff --git a/imbox.1 b/imbox.1
index 3510a74..b414232 100644
--- a/imbox.1
+++ b/imbox.1
@@ -70,6 +70,8 @@ on the domain name of
 .Ar user ,
 or simply the domain name
 if no SRV record exists.
+Lookup requires
+.Xr dig 1 .
 .
 .It Fl m Ar mailbox
 Export messages from