You Cannot Download Mail from a Server Without UIDL Support (321119)


The information in this article applies to:

  • Microsoft Windows Powered Pocket PC 2002
This article was previously published under Q321119

SYMPTOMS

When you try to receive e-mail messages from some servers by using Post Office Protocol (POP3), you may receive the following error message:
Messages could not be downloaded as your POP3 server does not provide a unique identifier for each message.

CAUSE

This message is expected for POP3 servers that do not support unique-ID listing (UIDL).

RESOLUTION

Most POP3 servers support UIDL. In some cases, this must be configured on the server.

STATUS

This behavior is by design.

MORE INFORMATION

The UIDL of a message is an arbitrary server-determined string that uniquely identifies a message in a maildrop. The UIDL persists across sessions. The UIDL is typically used by e-mail programs to uniquely identify messages between synchronization sessions.

REFERENCES

For additional information about UIDL, see Request for Comments (RFC) document 1939.
Modification Type:MajorLast Reviewed:4/25/2002
Keywords:kberrmsg kbprb KB321119
©2002 Microsoft Corporation. All rights reserved.