New Outlook – Error: Assertion:AccountSourceListStore is not initialized

You will need to reset new Outlook , by uninstalling then reinstalling the App

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Jason Lim Hi Herve, May i know if there are any files that needed to be edited manually? E.g change of CRM URL? Auth URL? or any redirections? Regards, Jason
Dynamics 365 On Prem Email Addin Not working · March 12, 2026
Jason Lim Hi Paris, Thanks. Did you have to make any changes to the aspx files / html / script files in order to complete the configuration? Regards, Jason
Dynamics 365 On Prem Email Addin Not working · March 10, 2026
Jason Lim Hi Herve, thank you for your explanation and confirming that i wasn't going crazy with Microsoft' release not containing the latest cumulative files. Question: Did you copy and paste the...
Dynamics 365 On Prem Email Addin Not working · March 10, 2026
HerveR Hello Paris, Can you track email with attachment with this new MS Graph method connection (and with EWS disabled) ? Accouding to me Graph doesn't support attachment in mail.... 🙁 Thanks in...
Dynamics 365 On Prem Email Addin Not working · March 8, 2026
HerveR Hello Paris, For me after upgrade crm to 9.1.42, imported managed solutions, graph configured AND apply the famous zip file (containing CrmMailApp updates) : I have 2 authentications : 1. ADFS onprem,...
Dynamics 365 On Prem Email Addin Not working · March 8, 2026