Strange lines in log

[AndrewF7]

I have some troubles with Postfix mail server. Sometimes incoming messages are lost somewhere insinde our external mail server. Remote mailserver says that message was successfully delivered to our mailserver. But all I see in log is:

May 24 16:37:17 ns postfix/smtpd[10773]: connect from xx.xx.xx[xxx.xxx.56.129]
May 24 16:37:17 ns postfix/smtpd[10773]: 4C6E6965DF3: client=xx.xx.xx[xx.xx.56.129]
May 24 16:37:17 ns postfix/cleanup[11288]: 4C6E6965DF3: message-id=<MEX1hMg53Mtt8j5VH9e00002730@xx.xx.xx>
May 24 16:37:18 ns postfix/smtpd[10773]: disconnect from xx.xx.xx[xx.xx.56.129]

I can't understand what mean "cleanup" exactly after connection. Anybody knows?

 

[piti]

man cleanup ))

"The cleanup daemon processes inbound mail, inserts it into the incoming mail queue, and informs the queue manager of its arrival."

 

[AndrewF7]

piti: it means that message was transferred to queue manager and stucked there?

 

[piti]

here's the description how are messages processed by postfix

http://www.postfix.org/OVERVIEW.html

read through the receiving and also delivery part as there is the role of queue manager described