==== REQUIRED BASIC INFO OF YOUR IREDMAIL SERVER ====
- iRedMail version (check /etc/iredmail-release): 1.3.1 MARIADB edition.
- Deployed with iRedMail Easy or the downloadable installer?
- Linux/BSD distribution name and version: Ubuntu 18.04.4
- Store mail accounts in which backend (LDAP/MySQL/PGSQL):
- 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.
====

Dear All,
I have an iredmail server installed on my AWS EC2 instance. Today I checked that the server was down due to the EBS SSD volume that is attached to the instance (and from where the iredmail is running) was out of space, so I modified the volume's size. I run the growparts + resize commands as it should be (plus rebooted, and restarted all services - postfix, dovecot, nginx) and the server responded properly, the app is running, all roundcube installations are connectable, but I have a problem: I CAN send emails from all accounts, BUT I DO NOT receive any emails to the accounts. There is no relevant error message in the logs. What is the problem? I think I tried everything, but still no success, still can't receive the emails sent to any address. My app is located at mail.viko.cloud.
Many thanks in advance!
Viktor