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-rw-r--r--usr.bin/mail/mail.13
1 files changed, 3 insertions, 0 deletions
diff --git a/usr.bin/mail/mail.1 b/usr.bin/mail/mail.1
index 7b70e4666573..1f17f1052b0b 100644
--- a/usr.bin/mail/mail.1
+++ b/usr.bin/mail/mail.1
@@ -833,6 +833,9 @@ of a message you are sending.
.It Ar hold
This option is used to hold messages in the system mailbox
by default.
+.It Ar keep
+With this option, the system mailbox will never be removed, even when
+it has zero length.
.It Ar ignore
Causes interrupt signals from your terminal to be ignored and echoed as
@'s.