Constant connection and disconnection from localhost

Hello people,

Hoping you and your mails server are doing great!

Could you help me understand these logs to validate if there's something wrong with my configuration?

My brand new installation of Zextras Carbonio CE in Ubuntu Server 22.04 is showing a constant connection and disconnection from localhost[127.0.0.1] in /var/log/carbonio.log. It looks like this:

Nov 12 14:23:48 mail postfix/smtpd[849232]: connect from localhost[127.0.0.1]
Nov 12 14:23:48 mail postfix/smtpd[849232]: lost connection after CONNECT from localhost[127.0.0.1]
Nov 12 14:23:48 mail postfix/smtpd[849232]: disconnect from localhost[127.0.0.1] commands=0/0
Nov 12 14:23:53 mail postfix/postscreen[599302]: CONNECT from [127.0.0.1]:49004 to [127.0.0.1]:25
Nov 12 14:23:53 mail postfix/postscreen[599302]: ALLOWLISTED [127.0.0.1]:49004
Nov 12 14:23:53 mail postfix/smtpd[849232]: connect from localhost[127.0.0.1]
Nov 12 14:23:53 mail postfix/smtpd[849232]: lost connection after CONNECT from localhost[127.0.0.1]
Nov 12 14:23:53 mail postfix/smtpd[849232]: disconnect from localhost[127.0.0.1] commands=0/0
Nov 12 14:24:01 mail zmconfigd[94874]: Fetching All configs
Nov 12 14:24:01 mail zmconfigd[94874]: All configs fetched in 0.03 seconds
Nov 12 14:24:03 mail postfix/postscreen[599302]: CONNECT from [127.0.0.1]:40310 to [127.0.0.1]:25
Nov 12 14:24:03 mail postfix/postscreen[599302]: ALLOWLISTED [127.0.0.1]:40310
Nov 12 14:24:03 mail postfix/smtpd[849232]: connect from localhost[127.0.0.1]
Nov 12 14:24:03 mail postfix/smtpd[849232]: lost connection after CONNECT from localhost[127.0.0.1]
Nov 12 14:24:03 mail postfix/smtpd[849232]: disconnect from localhost[127.0.0.1] commands=0/0
Nov 12 14:24:05 mail zmconfigd[94874]: Tracking service antivirus
Nov 12 14:24:05 mail zmconfigd[94874]: Command not defined for directory-server
Nov 12 14:24:06 mail /postfix-script[855688]: the Postfix mail system is running: PID: 97304
Nov 12 14:24:06 mail zmconfigd[94874]: Command not defined for service-discover
Nov 12 14:24:07 mail /postfix-script[855840]: the Postfix mail system is running: PID: 97304
Nov 12 14:24:07 mail zmconfigd[94874]: Watchdog: skipping service antivirus. Service not yet available for restarts.
Nov 12 14:24:07 mail zmconfigd[94874]: All rewrite threads completed in 0.00 sec
Nov 12 14:24:07 mail zmconfigd[94874]: All restarts completed in 0.00 sec
Nov 12 14:24:13 mail postfix/postscreen[599302]: CONNECT from [127.0.0.1]:35732 to [127.0.0.1]:25
Nov 12 14:24:13 mail postfix/postscreen[599302]: ALLOWLISTED [127.0.0.1]:35732
Nov 12 14:24:13 mail postfix/smtpd[849232]: connect from localhost[127.0.0.1]
Nov 12 14:24:13 mail postfix/smtpd[849232]: lost connection after CONNECT from localhost[127.0.0.1]
Nov 12 14:24:13 mail postfix/smtpd[849232]: disconnect from localhost[127.0.0.1] commands=0/0

May I know why I'm receiving these logs and what should I check to fix it? I have been checking around the web and I haven't found anything useful. I checked my DNS entries and they look fine.

Any help will be greatly appreciated. Thank you beforehand!