Problem creating Email out of Adobe Reader DC

Hello,

I have a problem with creating an Email out of a PDF opened in Adobe Reader DC.

For testing i opened a word and wrote "test " into it, then saved it as a .pdf.

I opened the test pdf with reader dc and clicked on the email button.

I take standard Outlook profile and click on next.

Adobe Reader asks me if i want to send the document as a link or as a copy, i take copy.

Reader should now open my Outlook and generate an email with the document attached.

On my personal device this works with Adobe Reader DC but on my customers client it doesnt work.

I get an error after clicking "send copy" from Outlook wich states that there is no standard outlook profile set. After this error i get an error from reader "There was an error while sending your mail" an then the window gets closed and i am again at the pdf document.

Sending this document when i open a new mail in Outlook and attach it via drag and drop works fine, it is just the button within Reader DC wich doesnt seem to work for me.

What have i tried already:

- Reinstall and repair Outlook and Reader DC.

- Set the mail profile as standard within Outlook and within Reader DC.

- Created a new Outlook profile.

- Created a new mailing profile within Reader and set it as default.

- Disabled Cache mode in Outlook.

- Searched through all the options in Outlook and Reader DC

- Tried many different pdf's

The error is not there 100% off the time but 90% to 95%, so it happens almost everytime.

On another System i didnt get the error but i have 2 Clients wich share the same error.

On the same client this worked before and just started two months ago.

Can someone help me please?