Hello,

If the email is boucing like this it means the server configuration is not correct. Gossamer Mail does not currently bounce emails.

Tell your ISP there is a mistake in the way they set this up. In order to run Gossamer Mail using a catchall account you must have an email account setup for it. It does not matter what the email address for the account is as long as you know what it is so you can enter it in the Gossamer Mail configuration area under email.
Next the server must have *@yourdomain set to go to this email account.
And finally you must run incoming.pl on a cron (scheduler).

Step by Step:
Setup an email account gmail@cooeemail.com.au
Have *@cooeemail.com.au go to this account. This means if I send an email to dsfvsdfv@cooeemail.com.au it will go to this account. How to do this is very dependant on the servers configuration.
Then run incoming.pl on a cron. In telnet type crontab -e and edit the crontab file according to the man page on crontab or you can just have us setup the cron for you (support@gossamer-threads.com).

Cheers,

Scott