==== Required information ====
- iRedMail version: 0.8.4
- Store mail accounts in which backend (LDAP/MySQL/PGSQL): MySQL
- Linux/BSD distribution name and version: Ubuntu 12.04
- Related log if you're reporting an issue:
====
Consider a scenario
user@example.com resides on my iredmail server, sending receiving, everything working perfect.
Now, there are some services on the internet especially freshbooks or even wordpress blogs which send emails on behalf of user@example.com. Those emails never reach to user@example.com giving an error, user not logged in.
Zang suggests in all other support threads to have smtp auth enabled at senders end. This is something I can't make companies as big as freshbook do.
What is the best solution to cop with this ?