How do I stop synchronization emails?

Question

How do I stop these annoying synchronization emails? Outlook 2016 on my laptop:

9:57:23 Synchronizer Version 16.0.19822.20086

9:57:23 Synchronizing Mailbox '******@fuse.net'

9:57:23 Synchronizing Hierarchy

9:57:23      1 folder(s) updated in online store

9:57:30 Synchronizing server changes in folder 'Inbox'

9:57:31      1 item(s) added to offline folder

9:57:31 Synchronizing server changes in folder 'Drafts'

9:57:31 Synchronizing server changes in folder 'Support'

9:57:32 Synchronizing server changes in folder 'Deleted Items'

9:57:32 Synchronizing server changes in folder '1 ME'

9:57:33 Synchronizing server changes in folder 'Case of Oscar Slater'

9:57:34 Synchronizing server changes in folder 'Richard'

9:57:34 Synchronizing server changes in folder 'Create Room'

9:57:34 Synchronizing server changes in folder 'Scott Schenkel has my email'

9:57:34 Synchronizing server changes in folder 'Old Bills Bugging Me Now'

9:57:35 Synchronizing server changes in folder 'Wyze'

9:57:35 Synchronizing server changes in folder 'Allchan $29 Laptop'

9:57:36 Synchronizing server changes in folder 'All Crafts'

9:57:36 Synchronizing server changes in folder 'Deramores'

Answer 1

@Trish Finney
Looks like normal Classic Outlook Sync Logs. But they should only be found in your Sync Issues folders not in your Inbox.

The first thing to try is to reset your Outlook Default Folders. This involves using an Outlook Command Line.

1 -- Close Outlook.

2 -- Press the Windows key and the R key simultaneously to open the Windows Run dialog. You should see:

3 -- In the text box copy/paste in this command outlook.exe /resetfolders and click OK.

This should reset your Default Folder settings so Sync Logs go to your Sync Issues folders like they are suppose to. If you keep getting them in your Inbox, come back and we'll try some other fixes.

Answer 2

Those “synchronizing…” lines are normal status messages from Outlook’s sync engine, not emails. To stop seeing them, either:

1. Turn off Cached Exchange Mode (stops offline sync entirely, but also removes offline access), or
2. Leave Cached Mode on and just ignore/close the Sync Issues / Sync Logs view.

If the concern is the volume of items being synced (making these messages frequent), reduce what’s cached or adjust filters:

1. In Outlook 2016, select File > Account Settings > Account Settings.
2. Select the account and choose Change.
3. Use the Mail to keep offline slider to cache fewer months, or move it to All if the issue is that only a subset is syncing and Outlook keeps catching up.
4. Select Next, then Finish, then restart Outlook.

If a specific folder shows constant sync activity and mismatched counts, check for a sync filter:

1. Right-click the folder > Properties.
2. Go to the Synchronization tab > Filter.
3. Select Clear All or adjust the filter.
4. Let Outlook run a Send/Receive so it resyncs with the server.

These steps reduce unnecessary sync work and the associated status messages.

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References:

• Offline item count for a folder in Outlook differs from the server item count
• Only a subset of items are synchronized in shared mailboxes or public folders in Outlook 2016