playbooks/roles/mail/templates/user-patches.sh.j2

@@ -5,6 +5,19 @@ postconf -e 'smtpd_sasl_path = /dev/shm/sasl-auth.sock'
 postconf -e 'smtpd_sasl_auth_enable = yes'
 postconf -e 'broken_sasl_auth_clients = yes'
 
+# This is necessary for any users with multiple email addresses. Kanidm stores all email addresses in
+# the mail attribute, which means that postfix clones emails to all addresses. Since dovecot only
+# has a mailbox for the primary email address, the other addresses will bounce, and the sender
+# will receive a bounce message. Kanidm provides the "primary" (first) email address in the
+# emailprimary attribute, so we use that instead.
+#
+# We don't change the ldap-sender.cf or ldap-groups.cf files because we want people to be able to
+# send mail from any of their email addresses, not just the primary one, and we want email to
+# groups to be delivered regardless of which email it arrives at.
+sed -i 's/result_attribute = mail/result_attribute = emailprimary/' /etc/postfix/ldap-aliases.cf
+sed -i 's/result_attribute = mail/result_attribute = emailprimary/' /etc/postfix/ldap-domains.cf
+sed -i 's/result_attribute = mail/result_attribute = emailprimary/' /etc/postfix/ldap-users.cf
+
 echo 'auth_username_format = %Ln' >>/etc/dovecot/conf.d/10-auth.conf
 
 echo 'username_format = %Ln' >>/etc/dovecot/dovecot-oauth2.conf.ext