Re: leave messages on server

In article <180320080051148292%tenenb@xxxxxxxxxxxxxxxxx>,
Gérald Tenenbaum <tenenb@xxxxxxxxxxxxxxxxx> wrote:

I have two computers, one at home, one at work.
Both run Eudora 624, woth OSX 10.4.11.
In order to keep messages on both places, I checked the option "leave
messages on server for 7 days".
It worked fine for years.
Since tonight, all messages constantly reappear on the same Eudora
(actually on both) again and again.
Same behavior on my wife's and son's Eudora.
This must indicate that our ISP changed something.
Can any one figure out what happened and whether I can do something on
my side to repare this?
Many thanks in advance.

There's not enough information here to do more than guess, but my
*guess* is that your ISP may have changed server software.

The best guess I have is that your ISP had been running a POP3 server
that maintained a "Status" header on messages, which Eudora can use to
support the sort of setup you describe. Historically, it was the *only*
way Eudora tracked which messages had already been seen. Even if you
have Eudora set to the better approach of tracking message UID's (set in
the "Ports & Protocols" settings pane) any instance of Eudora will still
have no way to tell that some other client has downloaded a message if
the server does not support the Status header. There are valid arguments
against the Status header technically, since it requires the POP3 server
to modify messages and has never been formally standardized. As far as I
know, the only mailstore servers of any sort that support the Status
header are older ones like qpopper and the UW POP3 server. Many mail
providers these days need more sophisticated mail servers and have been
moving on to modern POP3 implementations like Courier and Dovecot that
do not offer the non-standard Status header.

The subtext for the abandonment of the Status header is that it offers a
limited and poorly-defined subset of the functionality for POP3 and
direct mbox clients which is specified in an extensible and clear way in
the IMAP protocol. There are intrinsic problems with using POP3 for
multiple-client access and sharing of message state, while IMAP is
designed for that. Most modern POP3 servers are *also* IMAP servers, so
you should ask your ISP if they've recently changed server software and
if that means you can use IMAP instead of POP3. Eudora is not a great
IMAP client, but it does basically work.

--
Now where did I hide that website...
.

Relevant Pages

  • Re: MimeOLE V6.00.2900.2180 creates incorrect X- header
    ... from Server, such as move to another folder, does ... engine loops when it encounters the defective empty header when it ... the POP3 server sends a period on a line by ... The search for the final header loops because of the malformed EOM ...
    (microsoft.public.windows.inetexplorer.ie6_outlookexpress)
  • Re: MimeOLE V6.00.2900.2180 creates incorrect X- header
    ... from Server, such as move to another folder, does ... engine loops when it encounters the defective empty header when it ... the POP3 server sends a period on a line by ... correctly applies a 'local' mail rule - ...
    (microsoft.public.windows.inetexplorer.ie6_outlookexpress)
  • Re: Eudora 5.2 OS 9.2.1 & gmail
    ... However, unlike other versions of Eudora, ... this doesn't seem to allow leaving mail on the server. ... So how can I make Eudora (or maybe do a gmail setting) ... Bill Cole is right; Gmail ignores client instructions, ...
    (comp.mail.eudora.mac)
  • Re: Send failures with bad recipient addresses
    ... Send an email having multiple recipient addresses in the Bcc: ... not Eudora -- the error response didn't look like a typical Eudora ... Your server responds to each individual "RCPT TO" command of SMTP, ...
    (comp.mail.eudora.mac)
  • Re: leave messages on server
    ... all messages constantly reappear on the same Eudora ... *guess* is that your ISP may have changed server software. ... The best guess I have is that your ISP had been running a POP3 server ... the IMAP protocol. ...
    (comp.mail.eudora.mac)