cancel
Showing results for 
Search instead for 
Did you mean: 
Reply
AV_H
New Member

REST API is not yet supported for this mailbox. This error can occur for sandbox (test) accounts or for accounts that are on a dedicated (on-premise) mail server.

Dear all, 

 

About 1,5 years ago I made an approval flow that was perfectly fine and did what it have to do. 

 

Recently the flow started to fail at different stages of the process. The only pattern I found is that:

  1. The flows always fails when a "send email"-action is executed.
  2. The error message is always the same, "REST API is not yet supported for this mailbox. This error can occur for sandbox (test) accounts or for accounts that are on a dedicated (on-premise) mail server..."

 

Do you have any idea what causes this issue and how I can resolve it? This would be so great!

 

Thanks in advance. 

 

Best regards, 

AVH

 

3 REPLIES 3
ScottShearer
Super User III
Super User III

@AV_H 

I suspect that you are using the old version of the Send an Email action.  You might try replacing the email actions with V2 email actions.

 

If I have answered your question, please mark your post as Solved.
If you like my response, please give it a Thumbs Up.

Scott

Hi Scott, 

 

Thanks for your reply. 

 

I will try to replace my send email actions with the newer ones. Is there a way to just simply update them or do I have to replace them one by one? 

 

Best regards, 

 

AVH

jordan_vtek
Regular Visitor

I have this issue as well. Was there a recent update? Mine worked 6 days ago and now don't. No changes to the flow since then. My connections are all office 365 outlook (send an email v2) and I'm using Dynamic Content to pull a valid email. The output shows the email used. I've tried other emails even static emails without dynamic content and all give errors. 

Helpful resources

Announcements
MBAS Attendee Badge

Claim Your Badge & Digital Swag!

Check out how to claim yours today!

MPA User Group

Welcome to the User Group Public Preview

Check out new user group experience and if you are a leader please create your group

secondImage

Are Your Ready?

Test your skills now with the Cloud Skill Challenge.

Top Solution Authors
Users online (55,675)