==== REQUIRED BASIC INFO OF YOUR IREDMAIL SERVER ====
- iRedMail version (check /etc/iredmail-release): 1.6.8
- Deployed with iRedMail Easy or the downloadable installer?no
- Linux/BSD distribution name and version: Rocky Linux 8
- Store mail accounts in which backend (LDAP/MySQL/PGSQL):  MySql
- Web server (Apache or Nginx): Apache
- Manage mail accounts with iRedAdmin-Pro? Yes
- [IMPORTANT] Related original log or error message is required if you're experiencing an issue.
====

I have this scenario.

I have only one user  for domain. All other user I want relay to next server. I use SASL authentification from internet for sending email from this email.
Simultaneously a I have relay all this domain  to Exchange server.
Problem is when I check "Relay without verifying local recipients".
Check it. I cant relay emails because user doesn't exist od Iredmail.
Uncheck it .I can't authorization user by smtp.

I understand that solution is write all users from  exchange to iredmail and uncheck "Relay without verifying local recipients".  But it is not comfortable.

Does exist configuration  to  relay all domain with  "Relay without verifying local recipients" and have active smtp authrization for user in this domain together?

Thank you.

LP