I have been running a Mercury server for a number of years on my home network, and I was setting up my daughter's new computer with her mailbox.
I have had to move away from the MS Mail app as it has morphed into the (New) Outlook version, which insists on trying to resolve my local mail account with my ISP's mail servers.
I am using an IMAP client application, but it has been unable to create a drafts folder; it found existing Inbox, Sent and Trash folders. Her mail client on her old laptop, I think, was using POP3/SMTP to access her mailbox.
How can I create a Drafts folder for my daughter's account? I don't see any way to make a folder, I can see some PNM files that match the Draft and Sent Items folders and appear to be indexes of the folder contents. There are matching PMI and PMM files. The PMI file looks like a binary index, while the PMM contains several emails in MIME format.
My son's account has an IMAPSUB.PM file with various folder names and a set of PNM/PMI/PMM files for each folder.

How can I register some new folders for my daughter's account?

Hi @dazfitzg ,

You don't say which email client you are trying to set up?

I use Mozilla Thunderbird, and have several email accounts configured with Mercury 4.91. (Some POP3/SMTP and some IMAP/SMTP) and have no problems creating subfolders within Thunderbird for either IMAP or POP3 accounts.

Generally the client looks after this functionality, and Mercury will create a HIERARCH.PM file containing the structure (in, for instance, C:/Mercury/Mail/UserName/HIERARCH.PM

Can you provide any further information.

John.