diff --git a/README.md b/README.md
index cc58d88..1edfee7 100644
--- a/README.md
+++ b/README.md
@@ -60,6 +60,19 @@ It redirects mail to MailHog using SMTP.
 
 You can also use `MailHog sendmail ...` instead of the separate mhsendmail binary.
 
+Alternatively, you can use your native `sendmail` command by providing `-S`, for example:
+
+```
+/usr/sbin/sendmail -S mail:1025
+```
+
+For example, in PHP you could add either of these lines to `php.ini`:
+
+```
+sendmail_path = /usr/local/bin/mhsendmail
+sendmail_path = /usr/sbin/sendmail -S mail:1025
+```
+
 #### Web UI
 
 ![Screenshot of MailHog web interface](/docs/MailHog.png "MailHog web interface")