Microsot outloo 365 and Exchange 2019 connectivity

Marek G 151 Reputation points


is there a description of the communication and tracing of emails from the client (Outlook)? Preferably with an example, please. That is, the user sent an email, which is stored on the client in the ost file draft and then the outbox. Outlook sends a notification about new mail to the server. The server receive this information and picks up mail from the client. Where are these logs stored, whether in the classic way using the message tracking log or in HTTP logs?


Exchange Server
Exchange Server
A family of Microsoft client/server messaging and collaboration software.
1,069 questions
A family of Microsoft email and calendar products.
2,929 questions
0 comments No comments
{count} votes

2 answers

Sort by: Most helpful
  1. Jake Zhang-MSFT 925 Reputation points Microsoft Vendor

    Hi Marek G,

    I'm glad you came to our forum for help, our forum support scope is troubleshooting and simple how to, your question is about the underlying workings of Outlook, sorry we can't provide official documentation in this regard.

    In response to your question, I'd like to explain something to you: the Exchange server uses mail tracking logs to record SMTP sessions that occur between mail servers and between Exchange services in the transport pipeline. These logs are very detailed and can be used to track the path of email in the mail stream. For HTTP logs, which are usually not accessible to users, Microsoft uses them for service diagnostics and troubleshooting.

    However, there is a logging in outlook which can be turned on by following the steps below:

    1. In Outlook, go to the File tab > Options > Advanced.
    2. Under Other, select or clear the Enable troubleshooting logging (requires restarting Outlook) check box.
    3. Exit and restart Outlook.

    In this logging, information is recorded for the following functions:

    • Calendar transactions that are generated by Outlook features, by user actions, by the object model, or by the MAPI Calendar Table, including:
    • Inbox autoprocessing
    • Free/busy publishing
    • Reminders
    • Calendar item actions (creation, modification, or deletion)
    • Resource booking The main purpose of the calendar logging feature is to quickly identify situations where, for example, meetings are inexplicably deleted from a calendar folder.
    • Free/busy time changes
    • Offline Address Book
    • Transactions for the Messaging Application Programming Interface (MAPI), which is used with Microsoft Exchange, POP3, Internet Message Access Protocol (IMAP), Simple Mail Transfer Protocol (SMTP), and Lightweight Directory Access Protocol (LDAP). A unique log file is generated for each Send/Receive action that you perform on these accounts.
    • Communications with Exchange, POP3, SMTP, and IMAP servers.

    Hopefully, you will find the information you are looking for in this logging.

  2. Marek G 151 Reputation points

    Good day,

    it was all about exchange communication. That is, where we can find the log of communication with the client. that is, for example, that the storedriver received a notification from the Outlook client to download new emails. is that, for example, the storedrive notifymapi voice that indicates information about a new message, etc. thank you