==== REQUIRED BASIC INFO OF YOUR IREDMAIL SERVER ====
- iRedMail version (check /etc/iredmail-release):  0.9.9
- Deployed with iRedMail Easy or the downloadable installer?  downloadable installer
- Linux/BSD distribution name and version: Debian 9
- Store mail accounts in which backend (LDAP/MySQL/PGSQL):  LDAP
- 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.
====
So I am installing this after the fact. For some reason it did not want to install originally so I skipped it.
Now wanting it installed, I was able to get the packages installed from apt.

Then running the service, I see it is not  see starting/running.

Looking at the log  at /var/log/sogo/sogo.log

Jul 12 15:41:37 sogod [28289]: All products loaded - current memory usage at 260 MB
/usr/sbin/sogod: Uncaught exception NGDidNotFindServiceException, reason: did not find service PH_SOGO_BIND_PORT
Jul 12 15:48:02 sogod [974]: version 4.0.7 (build @shiva2.inverse 201907120201) -- starting
Jul 12 15:48:02 sogod [974]: vmem size check enabled: shutting down app when vmem > 500 MB. Currently at 199 MB
Jul 12 15:48:02 sogod [974]: <0x0x562591c5c3f0[SOGoProductLoader]> SOGo products loaded from '/usr/lib/GNUstep/SOGo':
Jul 12 15:48:02 sogod [974]: <0x0x562591c5c3f0[SOGoProductLoader]>   Contacts.SOGo, MailerUI.SOGo, PreferencesUI.SOGo, SchedulerUI.SOGo, Mailer.SOGo, Appointments.SOGo, MailPartViewers.SOGo, MainUI.SOGo, ActiveSync.SOGo, AdministrationUI.SOGo, CommonUI.SOGo, ContactsUI.SOGo
Jul 12 15:48:02 sogod [974]: All products loaded - current memory usage at 267 MB
/usr/sbin/sogod: Uncaught exception NGDidNotFindServiceException, reason: did not find service PH_SOGO_BIND_PORT

So what is this service it is looking for?

Thanks!