[MlMt] “Contains both $Junk and $NotJunk flags”

[Dave C]

FYI, Apple Mail (iPhone) hasn’t complained at all.

Dave

- - - 

How do I know which message(s) are the problem? I can fix this myself?

My present method to get by is to toll MM to try again. Before it faults again it apparently downloads several messages from the server. A few cycles of this keeps me going.

>> On Jun 24, 2020, at 4:38 PM, Bill Cole <mmlist-20120120 at billmail.scconsult.com> wrote:
>> 
>> On 24 Jun 2020, at 17:51, Dave C wrote:
>> 
>> I get this error:
>> - - -
>> MailMate encountered the following error: “Server response: “I8 BAD [CLIENTBUG] APPEND Contains both $Junk and $NotJunk flags”.”.
>> Mailbox: “Inbox”.
> 
> Interesting... I have not seen a server which enforces that before.
> 
>> - - -
>> First question: What exactly is causing this error and how to fix it? “Try again” and “try later” simply result in repeated errors.
> 
> Somehow you have set both the "$Junk" and "$NotJunk" flags on a message in such a way that MailMate is trying to set them both (i.e. with an IMAP 'APPEND' command) and the server objects to that.
> 
> I think the solution is to take the account offline and fix the flags on that message so that it has at most one of $Junk and $NotJunk set. After that, bringing the account back online should allow MM to sync properly.
> 
>> Second question: Why is this a fatal error? (I have to take the account off-line to get MM to continue). Shouldn’t this be an “informational” error and not cause the account to fail?
> 
> Probably, in theory. The "Try Later" option should be essentially that although "Later" may be immediate if you have the mailbox configured to run in "Connected" mode (common for the Inbox.) MM works to stay perfectly in synch with the server, so if you have a flag change which has not been pushed to the server and an open connection with the right mailbox selected, MM will try to transmit the change. Benny has never implemented non-modal error notification and it is literally impossible for an IMAP client to differentiate between 'BAD  [CLIENTBUG]' responses. All MM can know is that the APPEND command that it tried failed because of something that the server considers improper in the command. It is possible (only Benny can say...) that MM has no concept of possible dependencies between tasks which are queued for an account or mailbox and it prevents problems by simply making sure that changes are done in a rigid order. Rather than continuing after a command has failed, possibly with commands that are predicated on the success of the failed command, MM stops doing anything that might be dependent.
> 
> -- 
> Bill Cole
> bill at scconsult.com or billcole at apache.org
> (AKA @grumpybozo and many *@billmail.scconsult.com addresses)
> Not Currently Available For Hire
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