PowerMail Engineering wrote:

>Tim Hodgson wrote:
>
>>I have an instance of a partial message in PM right now. I can see it on
>>my ISP's webmail interface, but PM is refusing to retrieve the rest of
>>it. Are there any more details I could give you that might help?
>
>I checked with Tim privately; no message was lost. However a message
>remained on the server, which should have been deleted, as his account
>is configured to delete the message from the server after retrieving
>them. All this will be fixed for the next release.

This excellent resolution begs the question why I have yet to get any
response from CTM regarding 2 longstanding bugs concerning disappeared
messages, messages being kept on server even though they have never been
downloaded and some of these messages being redownloaded again and again.
I have written about this many times both to the Powermail discuss list
and to CTM support, as early as when I first started using PowerMail
with version 3 and at least the problem redownloading remains today. As
a matter if fact while I was writing this the connection to one
popmailserver hung and I have to stop it. I'll be surprised if that
won't give me duplicate messages. This situation is why I translated a
remove duplicate script some years. Before that my DB was in chaos.

Last time I posted a lengthy message on the subject was in the thread
"Email not downloading" on january 24th. No-one seems to care much about
such a serious problem at CTM nor at the list, which is a letdown. I
have volunteered in private messages to CTM to help pinpoint the cause,
I have logged and analyzed my connections and postulated theories on
what could be going on. What more do I have to do in order to get some
attention to this problem? It's very frustrating.


Quote from "Email not downloading":
>I found this:
>
>With account settings changed to "Leave messages on server": Unchecked,
>"Remove from server after _ days": Unchecked and "Remove from server when
>removed locally" (The latter probably unnecessary): Unchecked, then
>PowerMail behaves like this:
>
>
>1. PowerMail request (with UIDL command) and gets a message list, all
>those listed are fetched (LIST) and then deleted (DELETE) one by one.
>2. On recheck, with application Popmonitor or via IMAP in PowerMail, 5
>messages with the same server assigned IDs as in the earlier received
>message list were listed at server, even though PowerMail supposedly
>deleted them in the previous session. 4 of those messages had be marked
>by the server as received by the client (The header Status:R was added).
>One particular message hadn't been received and indeed couldn't be found
>in my DB either.
>3. At a later point with more messages fetched, more messages was left at
>the server post fetching. The earlier unreceived message remained.
>4. Even more connections later there were still messages left post
>fetching, but
>*they were not the same messages*!
>5. The unreceived message was also gone, but still wasn't found in my DB.
>I did find one message that was only partially retrieved form the right
>sender, so this could be the one. It seems this particular message never
>was retrieved fully, so I lost the message.
>
>Conclusions:
>A: Messages may linger at some mail servers even after they have been
>marked for deletion by PM. Unclear why exactly, but one theory is
>specific server settings affect the behavior. These messages may later
>after several connections still be retrieved, but later than what should
>have been the case had everything went according to user expectations.
>B: Some messages may be left in a semi-retrieved state, but will be
>removed from the server later, even when not fully retrieved. Most likely
>because the server regards them as received, but that's just a theory
>currently.
>
>As I have experienced buildup of thousands of messages like A above, I
>know for a fact it's a real problem. I've experienced that on several
>accounts on different servers since version 4 of PowerMail. Because of
>this I didn't leave messages on server, but deleted them when fetching
>them. This worked, but I couldn't leave messages even for a day of risk
>of retrieving duplicates. This situation drove me to make the DeleteDups
>script, as I was swimming in multiple messages.
>On my own server (with AppleMailServer) I left all messages (21 000 last
>year) and didn't have a problem until late autumn last year.
>What's really disconcerting however is B above. Messages should never be
>lost unintentionally.
>
>I suggest that you people try and watch if any messages have been left
>behind on your accounts, with tools like PopMonitor or via IMAP, post
>your info and see if we can find a pattern. Application "Net Tool Box" do
>network dumps that can be filtered on the POP port 110.
>I could really need the help solving this. Remember that solving this is
>for everyones safety and not only for fixing my problems. Please help.
>
>My logged connections (edited): <http://<www.tankekraft.se/powermail/
>issues/conn_log_edit.txt>



PM 5.2.3 Swedish | OS X 10.4.5 | Powerbook G4/400Mhz | 1GB RAM | 30GB HD



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