unix - "mailx" -r command not working -


i using below command mail 1 user attachment placed content

mailx -r "sendermail@abc.com" -s "testing" "recievermailid@xyz.com" < emailmessagemail.txt 

and getting below error message..

   mailx: invalid option -- r     usage: mail [-iinv] [-s subject] [-c cc-addr] [-b bcc-addr] to-addr ...          [-- sendmail-options ...]     mail [-iinnv] -f [name]     mail [-iinnv] [-u user] 

can please advise.. in advance

just install

sudo apt-get install heirloom-mailx 

bsd-mailx doesn't have option. in order check use command:

dpkg -s $(readlink -e $(which mailx)) 

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