Hello, I’ve installed HestiaCP on second server too with same setup as from my first HestiaCP server.
On the new server I can’t get emails, I can just send them.
E.g I’ve send a test email to my gmail/yahoo, but can’t reply.
The MX records for the domain are good: http://www.intodns.com/bostel.net
Email score test 10/10.
Hi @Amadex
What does your exim4 mainlog say - any incoming mail there? Also what happens if you manualy check the connection over telnet: https://www.sparkpost.com/blog/how-to-check-an-smtp-connection-with-a-manual-telnet-session/
Sorry, that doesnt help much 
. Probaly you will need to find out why they are freezed -> http://bradthemad.org/tech/notes/exim_cheatsheet.php
Those frozen messages are irrelevant (outgoing emails), you should have a different when receiveing messages.
Have you checked as @Raphael suggested if the email server is accessible from the internet?
Thanks for answers. If I find a solution then I will come back to post it.
Btw. the new server is based on OpenVZ 7, the first one ist KVM. But that should’t be a problem, because it’s container version 7 not 6.
Hestia has some issues with OpenVZ, I would consider to use a more up to date virtualization technology as you already did on your first server (kvm, also lxc/lxd works properly).
Port 25 looks to be closed on your server ip.
I’ve contacted provider because of that and prior order I’ve told them to open all ports.
Btw. offtopic, I’ve added your panel to the list on my website https://www.lowendsupport.com/
Haha, thanks for that ‘soviet’ and welcome to Hestia 
just read your announcement thread on LET a couple days ago 
