The problem appeared to stem from a broken Gentoo ebuild for vpopmail.
Once vpopmail compiled from source and installed over the Gentoo install location in /var/vpopmail, it became functional again. From: Shaohui Zheng [mailto:[EMAIL PROTECTED] Sent: Thursday, July 26, 2007 7:10 PM To: email@example.com Subject: Re: [vchkpw] Failed to Delete User from Auth Backend the file permission may be incorrect. On 7/27/07, Signet List Account <[EMAIL PROTECTED]> wrote: Update: The user is removed from the db, but the user's directory still exists. Weird. From: Signet List Account [mailto: [EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]> ] Sent: Thursday, July 26, 2007 8:04 AM To: firstname.lastname@example.org Subject: [vchkpw] Failed to Delete User from Auth Backend Recently after re-compiling vpopmail-5.4.17, now any time I go to delete a user (either through command line or qmailadmin) I get the following error: ark bin # ./vdeluser [EMAIL PROTECTED] Failed to delete user from auth backend Error: Illegal username What would be causing this? -- Best regards Shaohui