Emailing from Quickbooks Enterprise 18 through Outlook 2016 O365 on a 2008R2 Terminal Server
We recently turned on MFA on O365 for our client. They were previously (and successfully) using Office 2010 installed on a terminal server (Quickbooks is installed on the physical server the terminal server runs on) to email invoices from Quickbooks. Upon turning on MFA, we learned that Office 2010 will not work with MFA so we went ahead and uninstalled 2010 Office and installed 2016 Office Shared Activation through their Office 365 (each user also has an E3 license). We had the users sign into Outlook 2016 on the terminal server under each of their profiles and that was successful (including the MFA). Outlook 2016 is set up as the default mail for each user's profile as well. This worked fine for about half a day and then we began getting messages in QB that the email could not be sent, we could not open Outlook, etc. We reinstalled QB and repaired Office. We also removed QB and reinstalled Office then installed QB but no luck. Any ideas appreciated!