Internal mail to be sent over SMTP

Community Support Mail
1

Greetings!

This morning I bought a VPS KVM 8 at hostinger.

I set it up with ubuntu 24 LTS and HestiaCP.

After following the Intro tutorial, I set up a domain for hestia using a common user name, as recommended (not root).

After that, I went to: Email and mail server | Hestia Control Panel and followed the intructions. However, the emails are never sent. The firewall is allowing communication. I also tried with amazon SES and still same error.

I know its a free software, but I appreciate any kind of help! I will be really grateful!

Here are the logs:

sudo tail -f /var/log/exim4/mainlog
2025-11-08 21:14:55 1vHipq-000000000UZ-2mE1 Frozen
2025-11-08 21:14:55 End queue run: pid=83177 -qff
2025-11-08 21:15:21 1vHnT7-00000000LiE-43vG <= [email protected] U=root P=local S=514
2025-11-08 21:15:21 1vHnT7-00000000LiE-43vG no IP address found for host :
2025-11-08 21:15:21 1vHnT7-00000000LiE-43vG == [email protected] R=send_via_unauthenticated_smtp_relay defer (-32): lookup of host “:” failed in send_via_unauthenticated_smtp_relay router
2025-11-08 21:15:21 1vHnT7-00000000LiE-43vG Frozen
2025-11-08 21:16:03 1vHnTn-00000000LrZ-0c21 <= [email protected] U=root P=local S=514
2025-11-08 21:16:03 1vHnTn-00000000LrZ-0c21 no IP address found for host :
2025-11-08 21:16:03 1vHnTn-00000000LrZ-0c21 == [email protected] R=send_via_unauthenticated_smtp_relay defer (-32): lookup of host “:” failed in send_via_unauthenticated_smtp_relay router
2025-11-08 21:16:03 1vHnTn-00000000LrZ-0c21 Frozen

What should I try? Any extra information you need? Thanks!

2

Hi, how did you set up your email in the panel?

  1. Created a domain?
  2. Issued a certificate?
  3. Registered DNS records that you took from the panel?
  4. Created a mail mailbox?
    Also your frozen emails you should see what kind of emails they are and their contents for example
    exim -bp
    sudo exim -Mvb 1uxwAU-002lD7-1a
    and then you can delete them
    sudo exim -Ab | awk '{print $3}' | xargs -n1 sudo exim -Mrm
    Also check if the VDS provider blocks mail ports(this happens on cheap rates)
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