Issue Plesk Email Security Pro: Antivirus cannot be activated on server nor individual email accounts

[stepgilb]

Server operating system version

Ubuntu 24.04.3 LTS

Plesk version and microupdate number

Plesk Obsidian v18.0.75_build1800260224.11 os_Ubuntu 24.04

*** SITUATION
Plesk Web Pro Edition is installed on a VM rented at STRATO, Plesk Obsidian 18.0.75 Update #1
Plesk Email Security pro: 1.5.26-8372, license is installed
Extensions -> Server Setting -> Amavis, ClamAV Dovecot Postfix are running, Antivirus is activated
# service drwebd status
â drwebd.service - Plesk Premium Antivirus
Loaded: loaded (/usr/lib/systemd/system/drwebd.service; disabled; preset: enabled)
Active: active (running) since Tue 2026-03-10 13:54:29 CET; 28min ago
Main PID: 5506 (drwebd.real)
Tasks: 2 (limit: 9426)
Memory: 782.1M (peak: 782.5M)
CPU: 1.227s
CGroup: /system.slice/drwebd.service
ââ5506 /opt/drweb/drwebd.real --foreground=yes
ââ5508 /opt/drweb/drwebd.real --foreground=yes

Mar 10 13:54:30 mail.n7w.com drwebd[5506]: Loading /var/drweb/bases/drwrisky.vdb - Ok, virus records: 47915
Mar 10 13:54:30 mail.n7w.com drwebd.real[5506]: Loading /var/drweb/bases/drwrisky.vdb - Ok, virus records: 47915
Mar 10 13:54:30 mail.n7w.com drwebd[5506]: Loading /var/drweb/bases/drwnasty.vdb - Ok, virus records: 128429
Mar 10 13:54:30 mail.n7w.com drwebd.real[5506]: Loading /var/drweb/bases/drwnasty.vdb - Ok, virus records: 128429
Mar 10 13:54:30 mail.n7w.com drwebd[5506]: Loading /var/drweb/bases/dwp11000.vdb - Ok, virus records: 739
Mar 10 13:54:30 mail.n7w.com drwebd.real[5506]: Loading /var/drweb/bases/dwp11000.vdb - Ok, virus records: 739
Mar 10 13:54:30 mail.n7w.com drwebd[5506]: Total virus records: 11798335
Mar 10 13:54:30 mail.n7w.com drwebd.real[5506]: Total virus records: 11798335
Mar 10 13:54:30 mail.n7w.com drwebd[5506]: Daemon is installed, active interfaces: /var/drweb/run/.daemon 127.0>
Mar 10 13:54:30 mail.n7w.com drwebd.real[5506]: Daemon is installed, active interfaces: /var/drweb/run/.daemon

*** PROBLEM:
When I click Plesk->Tools & Settings -> Mail Server Setings-> Antivirus I get: The 'Premium Antivirus for Servers' is installed and needs to be activated.
In an email account -> Antivirus: The 'Premium Antivirus for Servers' is installed and needs to be activated. Enable the antivirus in Server-wide mail settings

***QEUSTION:
How can I make sure the email accounts are actually secured???

Thank you for your support!

 

[Sebahat.hadzhi]

Hi, @stepgilb . If you navigate to Tools and Settings > License Information > Additional License Keys do you see the key for the Premium Antivirus extension present?

 

[stepgilb]

Yes, the key is present and was installed.

 

[Sebahat.hadzhi]

Thank you for the confirmation. Could you please check the following as well:

1. What's the status of the service under Tools & Settings > Services Management
2. If there are any errors related to extension/premium-av in /var/log/plesk/panel.log

 

[stepgilb]

root@mail:/var/log/plesk# grep -i premium panel.log
root@mail:/var/log/plesk#

No entry in panel.log

 

[Sebahat.hadzhi]

Thank you. Please try reapplying the license from Tools and Settings > License Information > Additional License Keys > drweb-unix > Install. If the issue is ongoing afterward, please provide me with the Dr Web license as well as your Plesk server license in a private message, so I can confirm with our team if there is any issue.