How to filter the outbound mails

[Swapana Ghosh]

Hi 

    we have few domains which we have migrated from Cobalt server to
 redhat 9.0 server. We are using the 'sendmail' as MTA.

    From the users under domain, when we are sending the mail, it is
reaching to the destination mailbox as <user>@www.domain..

    The inbound mails , i had taken care of through /etc/procmailrc , and
converting the 'www at domain' to '@domain'... 

    I want, when the users will send the mail the receiver will get the
mails from the users as 'user at domain', not as 'user at www.domain'..

    How i will convert the outbound mails for the above result? Can it
be possible through 'senmail.cf' file?  Help is really appreciated..

Thanks in advance

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