Make sure that the “Internet format” is set to “Let Outlook decide the best sending format”.Ĭhanging the E-mail properties for the contact's address. Double click on the email address of the contact and a dialog will open called “E-mail Properties”. #Outlook 2016 freezes when opening email with attachments full
When you are using Outlook 2013 or Outlook 2016 and are using the People view, switch to another view such as the List view or click on the “Source” link to open the contact form in full instead of the Contact Card.įor more info see: Open the full contact editing form in Outlook 2013 or Outlook 2016. When you are using Outlook 2010, use the following instructions instead of step 2 and 3: E-mail properties for contact addresses in Outlook 2010. Open that specific contact by double clicking the item in your Contacts folder. It can also be that the contact you are trying to send to have their E-mail Properties set to “Send using Outlook Rich Text Format”. Make sure that your default compose format isn’t set to Rich Text. Outlook 2010, Outlook 2013 and Outlook 2016įile-> Options-> Mail-> Compose messages in this format. To verify that you are not sending emails in Rich Text in general go to: The options to prevent sending out Rich Text emails are a bit scattered throughout Outlook since it can be controlled at Outlook, Contact and Message level. The best thing is to never compose your messages in RTF-format as you can only really rely on this format when you are in an internal Exchange environment with only Outlook clients but that is a whole different technical story of its own.
I've tried turning off my anti-virus program but that's not made any difference, so I'm assuming the issue must be within Outlook itself.Īnother common reason for this to happen is when you are sending in RTF-format and the message doesn’t get properly converted to the HTML or Plain Text format.Įspecially in the cases where they receive a winmail.dat attachment it is very likely that Rich Text is to blame here but it can be absent as well. If I send the same attachment through web mail or from another computer, the attachment remains intact and is received in the email. It happens to all attachments regardless of who I send it to and the format of the file (e.g. Whenever I send an attachment through Outlook, the recipient receives the email without the attachment although they sometimes say that it got renamed to winmail.dat.