On 6/15/2010 1:55 PM, James B. Byrne wrote: > CentOS-4.8 > cyrus-imapd-2.2.12-10 > sendmail-8.13.1-3.3 > > I have a mail hub which uses cyrus-imap with sendmail It has worked > well for us on this and prior hosts going back to 1995. And, I do > not have a problem with the current setup. > > What I would like to do however, is to deliver plus-formatted e-mail > addresses directly to users subfolders in their mailbox tree. Such > addresses take the form > userid+subfolder+sub-subfolder at domainname.tld. How this is done I > have not discovered. What I always get is an ".Address Unknown" > smtp error. Wild guess: sendmail will lowercase the local part to normalize usernames as it delivers to cyrus. Are your folder names all lowercase? -- Les Mikesell lesmikesell at gmail.com