Disable automatic updating of email addresses exchange 2016

2-How do we stop Exchange (more precisely i guess, the recipient policy) from creating those internal addresses for new mail contacts?

Had the same problem (a bit late) so I took your "script" and updated it.

Temporally disable email account without deleting in Outlook Define Send/Receive Groups. In the Send/Receive Groups dialog box, please click the Edit button. Then the Send/Receive Settings – All Accounts dialog box pops up. Select an email account which you want to temporally disable in the left Accounts pane. Uncheck the Include the selected account in this group box.

Use Cached Exchange Mode to work with items in your Office 365 or Microsoft Exchange Server mailbox even when your network connection is slow or unavailable.

After adding multiple email accounts, there will be multiple inbox folders and Sent Items folders created automatically.

Then the Outlook will run very slowly when enabling the Send and Receive function.

This issue was driving me nuts, but I just tried it. Whenever I send a message using the OS X Mail app, I suddenly find that same e-mail address in my contacts. • Open System Preferences • Open Internet Accounts • Select your Exchange Account • Turn Off Contacts for Exchange You should now see those automatic generated contacts gone. Everyone is so fond of saying that this doesn't happen, but it's happening to me as well.It's been happening for months now, and I first noticed it when I was on Mavericks. Office 365 and Exchange accounts have a "Suggested Contacts" feature that has caused this problem for me.You need to disable email address policy to be applied to contacts in Exchange and it will partially solve the problem.1) Expand Microsoft Exchange On-Premises 2) Expand Organization Configuration 3) Select Hub Transport and go to Email Address Policies Tab 4) Edit each one leaving .

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