On Wed, June 27, 2012 14:28, Noel Jones wrote: > On 6/27/2012 8:47 AM, James B. Byrne wrote: > >> The background is this. We are moving from a Sendmail/Cyrus-imap >> based system of many years to a Postfix/Cyrus-imap based email >> system. >> During the transitions the existing Sendmail/Cyrus-imap service >> naturally remains active. >> > > You describe a virtual mailbox domain. > > >> User accounts / domains are defined in hash:/etc/postfix/virtual >> according to the specifications in man 5 virtual and assigned to the >> variables $virtual_aliases and $virtual_alias_domains in main.cf. > > but you set it up as a virtual alias domain. This is likely the > source of your problems. List the domain in > virtual_mailbox_domains, list the recipients in virtual_mailbox_maps. > > Please refer to > http://www.postfix.org/ADDRESS_CLASS_README.html > http://www.postfix.org/VIRTUAL_README.html#virtual_mailbox
This is where I go astray. We use IMAP for user mailbox stores but every user also has a system account for authentication purposes. I read the instructions in ADDRESS_CLASS_README as implying that these circumstances most closely match this specification: > The virtual alias domain class. > > Purpose: hosted domains where each recipient address is aliased > to a local UNIX system account or to a remote address. Whereas this specification: > The virtual mailbox domain class. > > Purpose: final delivery for hosted domains where each recipient > address can have its own mailbox, and where users do not need to > have a UNIX system account. A virtual mailbox example is given in > the VIRTUAL_README file. does not seem to me to match our user authentication or mailbox delivery mechanisms at all. Further, the representations in the documentation deals solely with the case of direct delivery of email to an mbox or maildir type of arrangement. To my understanding these are not compatible with the cyrus-imap protocol. > Hints for configuring cyrus with postfix can be found in the > maildrop readme: http://www.postfix.org/MAILDROP_README.html If there are references in http://www.postfix.org/MAILDROP_README.html that detail how to configure postfix and cyrus-imap together then I cannot find them. If the inference I am to draw is that we should bypass Cyrus-imap delivery altogether then I am at a loss as to how the users would then get their mail. Am I to run imap reconstruct and quota on every user's mailbox tree at scheduled intervals instead? > > Aliases for virtual mailbox domains may be listed in the > virtual_alias_maps, but do not list the domain as a virtual alias > domain. > > To prevent surprises, all entries in virtual_alias_maps should be > fully-qualified -- no bare usernames, no wildcard @domain names. In our environment, which has existed since 1995, wildcarded @domain names are quite prevalent and simply eliminating them as suggested is not going to work for us. I appreciate the help but I cannot see how what you suggest can be implemented using cyrus-imap as the mailbox agent. -- *** E-Mail is NOT a SECURE channel *** James B. Byrne mailto:byrn...@harte-lyne.ca Harte & Lyne Limited http://www.harte-lyne.ca 9 Brockley Drive vox: +1 905 561 1241 Hamilton, Ontario fax: +1 905 561 0757 Canada L8E 3C3
