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Possible causes (see <a href="http://www-10.lotus.com/ldd/ndseforum.nsf/xpTopicThread.xsp?documentId=9C95B4EA86D4AB5985257BAC00583B18" rel="ugc">here</a>.)<br />
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1) The Invitee has deleted the calendar entry or archived it off.<br />
2) A reschedule arrived before the invitation itself arrived.
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Possible causes (see here [http://www-10.lotus.com/ldd/ndseforum.nsf/xpTopicThread.xsp?documentId=9C95B4EA86D4AB5985257BAC00583B18].)

1) The Invitee has deleted the calendar entry or archived it off.
2) A reschedule arrived before the invitation itself arrived.

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I'm receiving these anoying msgs from my mail server. I can't figure out what to do.
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I'm receiving these anoying msgs from my mail server. I can't figure out what to do.

What this msg means? Router: Error autoprocessing message xxxx : Unable to open the main calendar document. Prompt user before searching on the appointment UNID

An email client, email reader or more formally mail user agent (MUA) is a computer program used to access and manage a user's email. A web application that provides message management, composition, and reception functions is sometimes also considered an email client, but more commonly referred to as webmail.

Email Software

Within Internet message handling services (MHS), a message transfer agent or mail transfer agent (MTA) or mail relay is software that transfers electronic mail messages from one computer to another using a client–server application architecture. A MTA implements both the client (sending) and server (receiving) portions of the Simple Mail Transfer Protocol (SMTP). The terms mail server, mail exchanger, and MX host may also refer to a computer performing the MTA function. The Domain Name System (DNS) associates a mail server to a domain with mail exchanger (MX) resource records containing the domain name of a host providing MTA services.