Updated sendmail-args.

README.md

@@ -55,7 +55,7 @@ Sender address for all the e-mails originating from the web interface (i.e. conf
  
 Delivery method to use for outgoing e-mail; `schleuder-web` uses [`ActionMailer`](http://api.rubyonrails.org/classes/ActionMailer/Base.html) to send mail.
  
- - `WEBSCHLOCKER_CONFIG_SENDMAIL_ARGUMENTS` (default: `-t -i -f`)
+ - `WEBSCHLOCKER_CONFIG_SENDMAIL_ARGUMENTS` (default: `-i`)
  
 Arguments passed to `sendmail`, if `WEBSCHLOCKER_CONFIG_DELIVERY_METHOD` is set to `sendmail`.