Topic: Domain not error for some users
==== Required information ====
- iRedMail version: 2.1.1
- Store mail accounts in which backend (LDAP/MySQL/PGSQL): LDAP
- Linux/BSD distribution name and version: Ubuntu
- Related log if you're reporting an issue:
Sometimes users facing problem in sending emails to some domains as Your message did not reach some or all of the intended recipients.
The following recipient(s) could not be reached:
450 4.1.2 <firstname.lastname@example.org>: Recipient address rejected: Domain not found
NOTE : This type of problem only occurs for certain time of period after that emails will flow easily. This problem keeps on repeating.
Please help us to fix this issue.