==== REQUIRED BASIC INFO OF YOUR IREDMAIL SERVER ====
- iRedMail version (check /etc/iredmail-release): 1.6.2 OPENLDAP edition.
- Deployed with iRedMail Easy or the downloadable installer? downloadable installer
- Linux/BSD distribution name and version: Debian 11
- Store mail accounts in which backend (LDAP/MySQL/PGSQL): LDAP (Active Directory Windows Server 2016)
- Web server (Apache or Nginx): nginx
- Manage mail accounts with iRedAdmin-Pro? - No
- [IMPORTANT] Related original log or error message is required if you're experiencing an issue.
====

Hi, I have successfully installed iRedMail and integrated it with Active Directory. I'm tring to use AD attribute "otherMailbox" to setup multiple aliases, but postmap query always return empty result. I have tried to use the same query with "Users and computers" snap-in and it works. It looks like postmap query cannot search multi-value attributes? Here is my alias config:

server_host       = 192.168.97.12
server_port       = 3268
version              = 3
bind                  = yes
start_tls            = no
bind_dn            = cn=vmail,cn=users,dc=example,dc=local
bind_pw            = *******
search_base      = dc=example,dc=local
scope                = sub
debuglevel        = 0
query_filter       = (&(objectClass=user)(otherMailbox=%s))
result_attribute = userPrincipalName

I have also tried proxyAddresses , but without any result. Everything seems to be ok when searching singiel-value attributes.
Can any one help me to resolve this issue ?

Best regards,
Bartek