On 01/04/2013 04:13 AM, Viktor Dukhovni wrote: >>> from the alias form to the canonical form. This will also validate >>> > > the alias form as a valid address in RCPT TO commands. >> > >> > Unfortunately, I can not accomplish this with a single query. > Actually, you can: > > domain = example.com example.org ... > query_filter = mail=%u...@example.com > result_attribute = mail > > Just list all the domains whose namespace is identical to example.com > after example.com in the "domain = " list, then query for the user > in the canonical domain.
Unfortunately it does not fit to our ISP scenario, where there are hundreds of served domains and each domain possibly has some alias domains. > > This said, it is far better to list all the valid of each user in > a suitable multi-valued attribute and skip the domain alias hack. I think it's not scalable with LDAP. Many years ago I developed the same functionality to qmail-ldap, but that project seems to be dead now. Eventually I may find some time to implement this in Postfix. I'm wondering about adding some kind of argument attribute(s?) to ldap-table, which can look up other tables and its result can be expanded to query_filter, etc. Would it fit to Postfix? Kristof
