Unfortunately our Public Folder information store crashed on the weekend. I wasn't able to restore the IS fully, but was able to create a PST file with some of the data and folder structure. I used our backup software to merge the PST file with Exchange and it seemd to create the hiearchy properly.
My problem now is some of the folders were used for holding email. In the process of recreating the folder structure it assigned new addresses to these folder. So instead of Marketing@acme.com I now have Marketing1@acme.com. If I try to change the email address assigned to the folder in ESM I get an error saying the email address already exists.
If I look in ADUC Microsoft Exchange System Objects I can see many different folders listed. In that list I can see many different folders with the name Marketing assigned to them. Some have a string of numbers after them. The original folder with Marketing@acme.com assigned to it still appears to be listed in this list and I assume that is why the system won't allow me to change the name.
If I remove the original entry from this listing will it let me reclaim that email address? What happens to all of the email which is sitting in the Exchange queue? I tried doing this with another folder, but the email queue would still not see the updated folder and everyone received NDR messages.
What is the best way to ensure the folder receives email properly, and have the queue deliver its messages?