- You can use the /usr/local/hostingcontroller/config/sendmail/sendmail.mc file provided with the hostingcontroller. In case you want to use your own sendmail.mc file then add following line at the end of your sendmail.mc file and regenerate the sendmail.cf file using m4 or make utility.
	include(`/usr/local/hostingcontroller/config/sendmail/linuxconf-virtual.m4')
- If you have given your machine the mail server role, then whenever you will update its mail server role (updating any information) from panel hostingcontroller will replace your sendmail.cf file with the one provided by hostingcontroller. If you want that hostingcontroller should not replace your sendmail.cf file then replace the file /usr/local/hostingcontroller/config/sendmail.cf with your sendmail.cf file.
