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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

 

2 REPLIES 2
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Super User III
Super User III

Re: 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.

@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.

 

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Scott
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New Member

Re: 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.

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

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