I have the following doubt :

I login on my Unix machine as 'myid'
I send out mails from this id setting the Header Properties in sendmail command. (From : g-eacctst01).
I try sending mail to a wrong id.
Where will the bounce back mail be stored ?
How can we link the bounce back messages to be delivered at g-eacctst01 id ?

Please guide ASAP.

On HP-UX all outgoing email will sit in.... /var/spool/mqueue
there are usually two files associated to a standard outgoing email.
One file contains the message that should start with a "d" character while the header info file should start with a "q" character.

all the letters and numbers after the "q" and "d" should match thus you can identify which file goes with what file.

You can edit the "q" file and locate the bad address and domain and change them to the correct details. Do this for all entiries in the "q" file.

Save it and wait for sendmail to wake up and the email should now be sent to the correct place.

*** Be care full to make shure you have the right "q" file and you make no other changes....

have fun ;-)

The bounced message will be sent by the MAILER-DAEMON on the mail relay server to postmaster, which inturn will point to the person that takes care of email.

Your not planning on sending spam email are you ???

This is the typical setup

# The following alias is required by the mail protocol, RFC 2821
# Set it to the address of a HUMAN who deals with this system's mail problems.
postmaster: root

# Alias for mailer daemon; returned messages from our MAILER-DAEMON
# should be routed to our local Postmaster.
MAILER-DAEMON: postmaster

Thanks for ur replies.

No I dont intend to send spam mails.
We are sending emails to our customers (a very large number of customers) and would like to get / store info about the email ids for whom messages have bounced back.
This will help us to use alternative communicaton methods to reach to customers.

You cannot blame them for thinking you are verifying a spam "lead list".