SOGo can send mails without having "email" installed

NethServer Version: 7.4
Module: SOGo

I have SOGo installed and I can send mails from one user to another. By accident I’ve seen that “email” and “email2” are available to install at software center.
What is the reason for this?

Thanks in advance

Sogo only depends on nethserver-mail(2)-server. To have “Email (2)” installed you need to install nethserver-mail-filter too.

[root@testserver ~]# yum deplist nethserver-sogo

 dependency: nethserver-mail-server >= 1.1.0-2
   provider: nethserver-mail2-server.noarch 2.1.0-1.ns7
   provider: nethserver-mail-server.noarch 1.12.1-1.ns7

[root@testserver ~]# yum groupinfo "Email 2 (Beta)"

 Mandatory Packages:
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