There are a few features Google Workspace Sync for Microsoft Outlook (GWSMO) does not support in Outlook Mail. The GWSMO features aren't available in Outlook or might not work as you'd expect.
GWSMO features not in OutlookRecovering deleted items
After emptying your Deleted items folder, you can't use "Recover Deleted Items" in Outlook's Tools menu to get the messages back. (This menu item isn't available.)
You can't share a mailbox folder in Outlook with other users. (Permissions settings aren't available in the folder's Properties dialog.) This is because folders in Outlook map to labels in Gmail, which don't have permission properties.
Public folders aren't available with GWSMO. (They're missing from Outlook's navigation pane.)
GWSMO doesn't allow sending executable (.exe) file attachments (including executables in compressed attachments) and some other types of file attachments. These attachments don't appear in Outlook or Gmail. There’s also limitations when you send .eml or .msg attachments to Outlook users. For details, go to Can't view MSG or EML files.
What type of files can't I send?
.ade, .adp, .bat, .chm, .cmd, .com, .cpl, .dll, .exe,
.hta, .ins, .isp, .jse, .lib, .mde, .msc, .msg, .msp,
.mst, .pif, .scr, .sct, .shb, .sys, .vb, .vbe,
.vbs, .vxd, .wsc, .wsf, .wsh
Delivery receipts aren't generated in Outlook when using GWSMO. If you request a delivery receipt for a message sent from Outlook, you won't receive a response when the message is delivered. Instead, you can request an Outlook read receipt.
Email encryption using S/MIME isn't supported when sending email using GWSMO. As a workaround, S/MIME works when set up using an IMAP connection.
If you're using a Gmail alias and have Treat as alias turned on, the alias appears in the To or Cc fields when you reply in Outlook. Learn more
Outlook features that are available, but might not work as expectedRead receipts
Read receipts are generated in Outlook with GWSMO. To get a response when your message is read, your recipient must be using Outlook and must turn on read receipts for their profile.
You can set up automatic vacation responses to let people know when you're away. You must do this in Gmail, not using Outlook's out of office feature (which doesn't work with GWSMO). Learn how to set up an out of office or vacation reply in Gmail.
You can set up contact delegation in Google Workspace to give other users in your domain permission to access and manage your personal contacts. This feature isn't available in Outlook. Learn how to Give another user access to your contacts.
In Outlook, you can choose "Recall This Message" from a sent message's Actions menu to try to recall a message you just sent. Unlike Microsoft Exchange, Gmail can't recall messages. Instead, the recipient receives both the original message, along with a follow-up message saying you wanted to recall the message.
You can send mail marked as "Important" or "Low Priority" in Outlook. If you do, these values aren't synchronized with your Google Workspace account in the cloud and don't show up for other users.
Office add-ins for Outlook installed from the Office Store are not supported because they require an Exchange account. These types of add-ins include the Google Meet add-in.
The Global Address List (GAL) doesn't sync email aliases. Unlike Exchange, using the Check Names feature in Outlook will not resolve an email alias (to the primary address).
- What's supported in Outlook Mail
- What's not supported in Gmail
- Differences between Gmail and Outlook Mail
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