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@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?