Prevent Winmail.dat Attachments in Outlook 2007 and Outlook 2003. Search for the desired contact in your Outlook Contacts. Double-click the contact's email address or right-click the desired email address, then select either Open Outlook Properties or Outlook Properties.

1. Microsoft Outlook On Mac Can't Open Contact Attachments On Windows 10
2. Microsoft Outlook On Mac Can't Open Contact Attachments On Computer
3. Microsoft Outlook On Mac Can't Open Contact Attachments Free

• In either case, double-click the attachment to open it. To open an attachment from the message list, right-click the message that has the attachment, click View Attachments, and then click the name of the attachment. You can preview attachments in HTML or plain text messages in the Reading Pane and in open messages.
• Get help with your Outlook 2016 for Mac questions, and see what others are asking. Skip to main content. Open Outlook 2016 for Mac. Select View Sidebar. In the sidebar. I can't send or receive messages.
• Apr 01, 2020 In Microsoft Outlook 2016, Outlook 2019 and Outlook for Office 365, when you double-click an attachment to open it, the file does not open. However, you can right-click the attachment and then click Open to open it.
• Get attachments of an Outlook item from the server.; 9 minutes to read; In this article. An Outlook add-in cannot pass the attachments of a selected item directly to the remote service that runs on your server. Instead, the add-in can use the attachments API to send information about the attachments to the remote service.

This document contains information about why an attachment is missing or not being sent through Microsoft Outlook and Microsoft Outlook Express. These are two separate programs, make sure you follow the suggestions for the version of Outlook you're running.

If you need help sending attachments, see our how to send an attachment or photo through e-mail page. If you are using an e-mail client that is not Outlook, and cannot receive e-mail, see our article, I can't receive any e-mail attachments.

Attachment is too big

If the file attachment is too big (over 20 MB), the file may be stripped (excluded) from the e-mail because of the policies of your ISP. Also, Outlook may have a size restriction on the size of attachments. Check with your ISP or network administrator for more information about e-mail restrictions. In general, if the attachment is bigger than 20 MB, we suggest using a file sharing service rather than e-mail.

The latest versions of Outlook support a file attachment up to 20 MB.

Problems with Outlook authentication

If there are problems with how Outlook authenticating you account, it can cause problems without sending attachments. Often, these problems can be resolved by logging out, then logging back into Outlook. Follow these steps to log out and log back into your account.

1. Close all Microsoft Word, Microsoft Excel, or Microsoft Outlook open windows.
2. Open only Microsoft Outlook.
3. Click File, Office Account, and then Sign Out.
4. Click Yes to sign out and then close Microsoft Outlook.
5. Re-open Microsoft Outlook and sign back into your local or Microsoft account.

Antivirus protection blocking attachment

If you have an antivirus protection program installed on your computer, and are having problems opening or viewing attachments, try temporarily disabling your antivirus software. (After checking if that was the problem, don't forget to re-enable it!) Microsoft publisher for mac alternative.

Disable Microsoft Outlook Add-ins

Microsoft Outlook add-ins can cause problems with attachments. Disable all add-ins by following these steps.

1. Open Microsoft Outlook.
2. Click File, Options, and then Add-ins
3. Under Manage click COM Add-ins.
4. Click on GO button next to Manage and then uncheck all of the Add-ins.

5. Once everything is disabled, click Ok.
6. Close Microsoft Outlook and then re-open Outlook to see if the attachment issue is resolved.

Microsoft Outlook 2000 is set up to accept certain sized files

Microsoft Outlook 2000 and earlier can be set up to only accept files of a certain size. If you're attempting to receive a large file, verify this feature has not been enabled by following these steps.

1. Open Outlook.
2. Click Tools.
3. Click Options.
4. Click the Mail Deliverytab.
5. Under Mail Delivery, make sure the box 'Don't download messages larger than xxx KB' is not checked.

ISP or e-mail provider is removing the attachment

In some cases, the ISP or e-mail provider scans incoming e-mails and attachments, and automatically delete e-mail if it considers an attachment unsafe. Your ISP may also fail to deliver your e-mail if you exceed a disk space or bandwidth quota. Check with your ISP to make sure your e-mail is not being deleted because of data restrictions on your service account.

To determine if this is the cause of your issue, you would need to contact either your Internet service provider or e-mail provider. An alternative solution to this recommendation is to set up a free webmail account and try receiving the attachment through the webmail address.

Microsoft Outlook Express is blocking the attachment

Microsoft Outlook Express is set up by default to block some attachments, for example, .exe files and other executable files Microsoft considers unsafe. Although this feature can be disabled, we suggest you leave it enabled if you're running Outlook Express. If you want to send an executable file through e-mail, compress the file.

For users who are aware of the potential risks of accepting executable files and want to disable this feature, follow these steps.

1. Open Outlook Express.
2. Click Tools.
3. Click Options.
4. Click the Security tab.
5. In the Security window under Virus Protection, uncheck 'Do not allow attachments to be saved or opened that could potentially be a virus.'
6. Click Ok.

Microsoft Outlook On Mac Can't Open Contact Attachments On Windows 10

Below is a listing of file extension Microsoft considers unsafe when sent through e-mail.

For additional information about each of the above file extensions, see our file extensions page.

Additional information

Microsoft Outlook On Mac Can't Open Contact Attachments On Computer

Microsoft Outlook On Mac Can't Open Contact Attachments Free

• See the attachment and Outlook definitions for further information and related links.