pop3d vs. Microsoft Outlook [Express]
Pascal.Gienger at uni-konstanz.de
Wed Jul 30 05:58:14 EDT 2003
The Microsoft Mail Products seem to have a problem with the generated UIDLs
of the Cyrus pop3d.
Cyrus pop3d uses UIDLs with a pattern of "UnixTimestamp.InternalNumber",
so the "UIDL" command results in something like this:
Apparently Outlook and OE have problems with this as they begin getting
mail as "new" even if they already have downloaded it ("Leave mail on
I activated the telemetry log for a user using Outlook but this shows that
Cyrus does things 100% correct. But Outlook and Outlook Express seem to
randomly download mail.
It seems that Outlook only uses a fixed number of chars to hold the UIDL,
the rest is dicarded. The problem arose when when message-numbers reached
1000. So it seems that Outlook uses 14 or 15 chars. So then for Outlook all
messages have the same UIDL, resulting in this behaviour.
Our previous mail system ("Sun iPlanet") used UIDLS as 18328-100938292. So
the problem did not arise.
Had anybody the same problem?
We are encouring users to use IMAP4 if they wish to leave mail on the
server. Besides this, we did not find a solution. And Microsoft does not
reply to an error report.
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