I use the AIX mhmail command as follows:

mhmail $ADDRESS -from $FROM -subject $SUBJECT -cc $CC </tmp/from_off

Of course I supply the variables $ADDRESS, $FROM, $SUBJECT and $CC but
the email looks like it came from whomever I specify.  The mail headers
do indeed show the true account on the AIX machine that generated it, so
it depends on the receipient email system as to what is looked at and
verified.

Tom Melton
Emory HealthCare


>>> r.post AT SARA DOT NL 02/14/02 06:04AM >>>
> I know this is not a TSM topic but what the hey.
> We currently use AIX sendmail to mail copies of our vault list
generated
> from TSM to our off-site tape handler.
> With the recent rash of viruses being sent by email, this company
will not
> accept email from a sender they can not do a "reverse DNS lookup"
on.
> And they can't do a 'reverse DNS lookup" on the mail they are getting
from
> my TSM server.
> Our mail guys,( who are like me and don't know much about sendmail)
tell me
> that there should be a way of supplying a from address that is more
public
> in the mail we are automatically sending from my TSM AIX server.
> For the life of me I can't find this in any of the manuals I've
searched.
>  anyone have any ideas?
>

Hmmm,

it is possible in sendmail (recent sendmail versions, and you don't
want to
use older versions ;) to define a canonical map. This translates the
'from'
header and the 'mail from:' smtp command to whatever you say.

It's more likely a dns problem, not sendmail. Have your dns guys add a
reverse
entry for the ip address of you tsm server to it's hostname as it is
know in
the dns (canonical name) so if your server is known as
buackup.example.com in
the dns with ip of 172.31.0.123 that make sure you also have a reverse
entry.
eg.

backup.example.com. IN A 172.31.0.123

and:

172.31.0.123    IN PTR backup.example.com.

This usually solves your kind of problems.


--
Met vriendelijke groeten,
Met vriendelijke groeten,

Remco Post

SARA - Stichting Academisch Rekencentrum Amsterdam
High Performance Computing  Tel. +31 20 592 8008    Fax. +31 20 668
3167

"I really didn't foresee the Internet. But then, neither did the
computer
industry. Not that that tells us very much of course - the computer
industry
didn't even foresee that the century was going to end." -- Douglas
Adams