==== REQUIRED BASIC INFO OF YOUR IREDMAIL SERVER ====
- iRedMail version (check /etc/iredmail-release): 1.2.1
- Deployed with iRedMail Easy or the downloadable installer? installer
- Linux/BSD distribution name and version: centos 8
- Store mail accounts in which backend (LDAP/MySQL/PGSQL): mysql
- Web server (Apache or Nginx): nginx
- Manage mail accounts with iRedAdmin-Pro? yes
- [IMPORTANT] Related original log or error message is required if you're experiencing an issue.
====
Setup:
iredmail-pro server with an address it@domain2.tld, all email to this address are set to forward to
user1@domain1.tdl and user2@dmain2.tld

if any user from domain1.tld send an email to it@domain2.tld we get the email refused with the error
REJECT SMTP AUTH is required for users under this sender domain

followed instruction on posting https://forum.iredmail.org/topic14387-s … -list.html

add a setting in /opt/iredapd/settings.py and restart iredapd service:

CHECK_SPF_IF_LOGIN_MISMATCH = True

..... it seemed to have worked for Craig    BUT NO JOY for me.