diff --git a/include/applets.h b/include/applets.h
index 830ff28..a78ce1c 100644
--- a/include/applets.h
+++ b/include/applets.h
@@ -299,6 +299,7 @@
 USE_RUNSVDIR(APPLET(runsvdir, _BB_DIR_USR_BIN, _BB_SUID_NEVER))
 USE_RX(APPLET(rx, _BB_DIR_USR_BIN, _BB_SUID_NEVER))
 USE_SED(APPLET(sed, _BB_DIR_BIN, _BB_SUID_NEVER))
+USE_SENDMAIL(APPLET(sendmail, _BB_DIR_USR_BIN, _BB_SUID_NEVER))
 USE_SELINUXENABLED(APPLET(selinuxenabled, _BB_DIR_USR_SBIN, _BB_SUID_NEVER))
 USE_SEQ(APPLET_NOFORK(seq, seq, _BB_DIR_USR_BIN, _BB_SUID_NEVER, seq))
 USE_SESTATUS(APPLET(sestatus, _BB_DIR_USR_SBIN, _BB_SUID_NEVER))
diff --git a/include/usage.h b/include/usage.h
index 2fa8780..0ef17b5 100644
--- a/include/usage.h
+++ b/include/usage.h
@@ -3134,6 +3134,29 @@
 #define selinuxenabled_trivial_usage
 #define selinuxenabled_full_usage
 
+#define sendmail_trivial_usage \
+       "[-d] {-t to}+ [-f from] [-n[notify]] [-s subject] [-b file]*\n" \
+       "[-a attachment]* [-c charset] [-w timeout] [-h server] [-p port] [-U user] [-P password]"
+#define sendmail_full_usage \
+       "Send an email from to with subject and optional attachments.\n" \
+       "Body is read from stdin or from optional files" \
+       "\n\nArguments:\n" \
+       "	-d		Just dump composed message\n" \
+       "	-t to		Recipient email. May be multiple\n" \
+       "	-f from		Sender email\n" \
+       "	-n[notify]	Optional notification address. If just -n given then notifies the sender\n" \
+       "	-s subject	Optional subject\n" \
+       "	-b filename	Optional body content file. May be multiple\n" \
+       "	-a filename	Optional file attachment. May be multiple\n" \
+       "	-c charset	Assumed charset for body and subject [koi8-r]" \
+       USE_FEATURE_SENDMAIL_NETWORK("\n" \
+       "	-w timeout	Set timeout on network operations\n" \
+       "	-h server	Optional mail server name or IP [127.0.0.1]\n" \
+       "	-p port		Optional mail server port [25]\n" \
+       "	-U username	Authenticate using AUTH LOGIN with specified username\n" \
+       "	-P password	Authenticate using AUTH LOGIN with specified password"\
+       )
+
 #define seq_trivial_usage \
        "[first [increment]] last"
 #define seq_full_usage \