Dace

There is no option for this because it is not intended behaviour at all. However, you are unfortunately not the only one, see this post.

AFAIK, non one has found out so far when and why this happens. 

Does it happen for "packages" or also for "return packages"?

Walter

I have the same problem and have tried a few tips, with no results. Why is SDL Trados trying to automatically launch any e-mail client at all? Can this be turned off?

Hello Peter Gustafik ,

This has been a topic now for a number of years (already logged in our systems as CRQ-6623).

Unfortunately, we have never been able to reliably reproduce the issue and find why this only affects a small number of users.

Maybe the suggestion here (from Nora Diaz) using AHK might be a suitable workaround

https://community.sdl.com/product-groups/translationproductivity/f/autohotkey/20418/close-outlook-window-when-creating-package

Hello Steven,

I have tried to run this script in AHK deleting the year "2016", but it didn't resolve the problem. Could you please suggest how should this script be modified for Trados 2021? I don't use Outlook, though I have Microsoft Office 365.

Thank you.

Hi Ekaterina,

"Welcome to Microsoft Outlook 2016" is the name of the window that opens in my system. What is yours called? Replacing your exact window name in the script should do the trick.

Hi Ekaterina,

"Welcome to Microsoft Outlook 2016" is the name of the window that opens in my system. What is yours called? Replacing your exact window name in the script should do the trick.

Hi Nora,

Yes, it works. Many thanks!

The names of my windows are in Russian, so I had to modify the code to "UTF-8 with BOM".

Besides, when the first window ("Data file Outlook") disappeared, another one appeared ("Open or create data file Outlook"). So I created another .ahk for this second window too, and the issue was resolved.

Great to hear! Thanks for posting how you solved it, I'm sure it will help others facing the same issue.