SMQ2 - SYSFAIL on Inbound Queue ISP_S_000000000000013 (Groupware)

Hello Experts,

since several days we got a problem with a Inbound Queue ISP_S_000000000000013 (see attachment). I have rest the status several times and always it goes back to status SYSFAIL. The error message states: "Input - Error processing the SOAP Request":

This is what I did until now:

• Check if User is contained in File UserList.xml and if Email is correct -> All OK
• Reset of Status and Unlock Queue -> Same Result SYSFAIL again
• Check if Queue is registered.

Any ideas are welcome.

Best Regards,

Oliver