From and Reply to Addresses using Sendmail

We would like to specify the 'From' and 'Reply to' addresses on emails we are sending to users via email_post.pl. I know this can be done using mailx but is it possible using sendmail? Due to our network configuration we have problems sending large amounts of emails unless we use sendmail configured in a particular way to work around it. Any suggestions would be much appreciated.
Thanks,
Eoin

sendmail to and from

Sorry I can't offer a suggestion but we would also like to know how this is done.

sendmail

In Solaris mailx is actually using sendmail as part of the process so if you want to specify the 'From' and 'Reply to' addresses it makes sense to use mailx where possible as you would be effectively duplicating the functionality.

The work around in your case was implemented via a change to the email_post.pl script rather than to the sendmail configuration so in theory there should be no problem using the mailx option

Thanks

Brian Crampton
Developer, Talis