I've edited my post. The first one was unclear and contained mistakes.
I've two calendars in Outlook. The first one is an Exchange account, the second a PST-file (outlook.pst).
I use Exchange for appointments only. E-Mail is sent by POP3 / SMTP only.
Now, accepted meeting requests should be added to the Exchange calendar. They were received by POP3. I could select the Exchange data-file as default location, but on the other hand, e-mails should be sent by SMTP so the outlook.pst has to be default (otherwise the exchange account is used).
Is it possible to add pop3 invitations to the Exchange calendar without making the Exchange Account the default data file?
Thank you in advance.