Changing sender address within mail

I have a shell script which checks disk space. I the use mail
command to send a mail messages to myself and other users to notify the
status of disk space.

When I receive the mail message notification it has my email address 
as the sent address but I wish to change the sender address 
to info-nflX8i9UMe2dZ29H/[email protected]

I cannot see an option within the mail command to specify a sender's address.

Any ideas how I can change the out going sender's address?

Thanks

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