Exchange bounces internal mail

I have exchange setup to use a catch all our my ISP SMTP via POP.

We have a few e-mail accounts that have no users created like,

I created routing rules for these to go to a users mail box but when I try to send e-mail to one of them from within our domain exchange bounces it why?
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SembeeConnect With a Mentor Commented:
There is no easy solution for this.

A public folder would work
A shared mailbox would work.

However users would need to have a procedure to move the sent item out of their own mailbox and place it in to the shared mailbox/folder. Otherwise you would have to look at a third party tool to do so, such as those from

How did you create the email address with no AD object attached to it?
If you have created those email addresses at the ISP then you need to do something similar on Exchange. Those email addresses need to be on something in Exchange - group, contact, user, public folder. Exchange doesn't have a catch all functionality.

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mellow52Author Commented:
Ok thanks I will do that. Strange thing is if the mail comes from outside (like my gmail) it still delivers it to the user I routed it to without having it as part of a group, contact, user or public folder.

What is the best way to then take in mail to a account like so every user in sales share it and work on it in real time. Public folder? I am testeing a shared mail folder now but the thing is when a user replys to an email where do the rest of the users see that sent mail. Also if an item gets deleted it does not go to the deleted folder.

I am sure most companies have these share e-mail adress. What is the best practice?

Thanks for your help.
You can have multiple users attach to the mailbox as well as their own.
Forced accept.

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