Dear Postfix Community, I have a bit of a conundrum that I can't seem to find an answer to in any of the documentation (and believe me, I've poured over it). Below is our somewhat sparse output of postconf -n.
The problem is this: We currently have two machines accepting mail for [EMAIL PROTECTED] One is this machine, and the other is our old machine, which we are currently migrating away from. Users may be located on one or the other machine, but not both. "Local" users are defined through the local_recipient_maps, which is an LDAP query. If the user is found, they're considered local, and Postfix then attempts to send the mail through the local transport (using Dovecot's LDA). However, there's a gotcha. Since Postfix is set to receive mail for [EMAIL PROTECTED], even if the "local" user lookup (via LDAP) fails, it will sit on the email and put it into "temporary failure." The only way I can get these messages relayed is to temporarily remove "fqdn.edu" from the "mydestination" parameter. My question is this: Is there a way to get Postfix to automatically try the "old" machine if the user isn't found in the "local_recipient_map"? i.e. Postfix would receive an email to "[EMAIL PROTECTED]", which exists in the LDAP lookup. Postfix passes it to Dovecot, where it gets delivered. Everyone's happy. However, if a message comes in for "[EMAIL PROTECTED]", which *isn't* in the local_recipient_map, then to try relaying that message to host2.fqdn.net (instead of either bouncing it or putting it into temporary failure)? Thanks, Matt Riedel # postconf -n alias_database = dbm:/etc/mail/aliases broken_sasl_auth_clients = yes canonical_maps = dbm:/opt/pkgsrc/etc/postfix/canonical config_directory = /opt/pkgsrc/etc/postfix content_filter = scan:127.0.0.1:10025 forward_path = /home/users/$user/.forward local_recipient_maps = ldap:/opt/pkgsrc/etc/postfix/ldap-virtual.cf mailbox_transport = dovecot mydestination = host.fqdn.edu, fqdn.edu myhostname = smtp.fqdn.edu mynetworks = 10.0.0.0/24 myorigin = $mydomain receive_override_options = no_address_mappings relayhost = myrelayhost.fqdn.edu smtpd_recipient_restrictions = permit_mynetworks permit_sasl_authenticated reject_unauth_destination smtpd_sasl_auth_enable = yes smtpd_sasl_authenticated_header = yes smtpd_sasl_path = /opt/pkgsrc/var/run/dovecot/auth-client smtpd_sasl_type = dovecot smtpd_tls_CAfile = /opt/pkgsrc/etc/cacert.pem smtpd_tls_cert_file = /opt/pkgsrc/etc/smtp.crt smtpd_tls_key_file = /opt/pkgsrc/etc/smtp.key smtpd_use_tls = yes transport_maps = dbm:/opt/pkgsrc/etc/postfix/transport_map virtual_alias_maps = ldap:/opt/pkgsrc/etc/postfix/ldap-alias.cf -- Matthew Riedel Senior IT Specialist - CITS University of Maryland, Baltimore [EMAIL PROTECTED] 410-706-4860
