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+# sendmail
+
+> Send email from the command line.
+
+- Send a message with the content of message.txt to the mail folder of local user `user_name`:
+
+`sendmail user_name < message.txt`
+
+- Send an email from you@yourdomain.com (assuming your local mail server is configured for this) to test@gmail.com containing the message in `message.txt`:
+
+`sendmail -f test@gmail.com you@yourdomain.com < message.txt`
+
+- Send an email from you@yourdomain.com (assuming your local mail server is configured for this) to test@gmail.com containing the file `file.zip`:
+
+`sendmail -f test@gmail.com you@yourdomain.com < file.zip`