Downloading attachment from Outlook emails is a simple. Just open the email, and click on the attachments to download them. Small attachment takes a few seconds while large attachment can take a few minutes. Attachment downloading process is generally hassling free, if you have a good internet connection. There should be any errors with the downloading of attachments. However, errors may take place due to internet server error of the email hosting server. If attachments come in .exe file format, for security reasons, they may get blocked and thus attachment will not be downloaded. For troubleshooting and guidance on downloading Outlook email attachment, call customer support team.