Home » Kerio User Forums » Kerio Connect » Kerio - Responding to MS Exchange generated calendar invites

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I've searched through the forums and wasn't able to find a specific answer to this.

Is Kerio able to respond to calendar invites sent from a MS Exchange server? In Outlook 2011 for Mac, I'll accept an invite sent from an MS Exchange based user and send a response. I'll receive a bounce back email with the header "Diagnostic-Code: SMTP; 582 5.8.2 This message could not be delivered." and the sender will never receive a response from me.

Looking through the Kerio manuals, the closet thing I can find is an Active Sync limitation in version 8.5: "Delivery and read receipts do not work."

Any info would be appreciated.

Thank you.

Pavel Dobry (Kerio)

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Yes, Kerio Connect is fully compatible with Internet standards, including meeting invitations.
I would suggest looking at message source and mail log to find details about why the message has not been delivered.
Kerio/GFI Brian

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The message "Diagnostic-Code: SMTP; 582 5.8.2 This message could not be delivered." is reported by the remote MTA. Kerio Connect is only quoting the response. Unfortunately the textual description and error code are not helpful and provide no clue as to why the message was not received by the remote mail system. Your only option is to contact the responsible admin of the remote mail system and ask for further clarification on the failed delivery message.

Brian Carmichael
Instructional Content Architect
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