https://community.hpe.com/t5/operating-system-linux/using-sendmail-for-relaying-on-the-basis-of-email-id-s/m-p/3643165#M19993 You can use smtp_auth to do it.<BR /><BR /><A href="http://www.sendmail.org/m4/smtp_auth.html" target="_blank">http://www.sendmail.org/m4/smtp_auth.html</A><BR /><BR />hth. Thu, 06 Oct 2005 07:33:40 GMT Muthukumar_5 2005-10-06T07:33:40Z https://community.hpe.com/t5/operating-system-linux/using-sendmail-for-relaying-on-the-basis-of-email-id-s/m-p/3643164#M19992 HI ALL <BR /><BR />I WANT TO RELAY MY MAILS USING THE ID RESTRICTIONS NOT ON THE BASIS OF IP ADDRESSES .<BR /><BR />I AM USING SENDMAIL ON LINUX ON OUR MAIL SERVER BUT I WANT TO RESTRICT MY USERS ON BASIS OF THERE ID'S AS THEY ARE ABLE TO SEND MAILS WITH ANY ID .<BR /><BR />PLS REVERT<BR /><BR />SACHIN RAJPUT<BR /> Thu, 06 Oct 2005 07:11:31 GMT https://community.hpe.com/t5/operating-system-linux/using-sendmail-for-relaying-on-the-basis-of-email-id-s/m-p/3643164#M19992 Sachin_48 2005-10-06T07:11:31Z https://community.hpe.com/t5/operating-system-linux/using-sendmail-for-relaying-on-the-basis-of-email-id-s/m-p/3643165#M19993 You can use smtp_auth to do it.<BR /><BR /><A href="http://www.sendmail.org/m4/smtp_auth.html" target="_blank">http://www.sendmail.org/m4/smtp_auth.html</A><BR /><BR />hth. Thu, 06 Oct 2005 07:33:40 GMT https://community.hpe.com/t5/operating-system-linux/using-sendmail-for-relaying-on-the-basis-of-email-id-s/m-p/3643165#M19993 Muthukumar_5 2005-10-06T07:33:40Z