Drafts are not usable across multiple clients (Status: Acknowledged Bug | Reported | Last Updated ).Workaround: You may need to toggle the 'Automatically filter junk email' option in OWA by first turning it off, clicking save, and then turning it back on and clicking save. Problem: Messages marked as spam should be delivered to the Junk Email folder, but instead are being delivered to the Inbox. SPAM is not being delivered to the Junk Email folder (Status: Open | Reported 4/2014 | Last Updated ).If you experience an NDR while using Outlook the recommendation is to flush the auto-complete and/or Suggested Contacts lists. Workaround: Microsoft recommends using identical versions of Outlook (down to the Service Pack and Hot Fix level), but even following this recommendation can lead to an NDR. Problem: If you access a single account with more than one e-mail client you may experience non-delivery reports (NDR) stating 'The recipient has been deleted or has no e-mail address.' Address List Caching in Outlook (Status: Open | Reported 4/2014 | Last Updated ).Problem: Sending attachments via SMTP is very slow, especially with larger attachments SMTP Slow Performance when sending attachments (Status: Open | Reported 11/2013 | Last Updated ).Problem: IMAP based clients experience slow performance
