[pmmail-list] Remote control

[Brian Morrison]

On Mon, 12 Feb 2001 09:25:54, Paul Hodges wrote:

>It seemed to me that the best way to handle this would be for the
>remote control window to stay logged in while open - but Southsoft
>disagreed, with the result that to find the message you marked for
>handling during the first login, PMMail has to scan the mailbox
>looking for the GUID (it does this by working outwards from the
>previous position of the message, in the vain hope that it might be
>near - there is actually no relationship).  Unfortunately, it doesn't
>cache the message number to GUID mappings (for the duration of the
>login) as it finds them, so the scan is repeated tediously again and
>again when fetching or deleting several items in a mailbox.

BoB was under quite a lot of pressure with various features when I
corresponded with him about this problem in the first place, I don't
know how many Demon customers badgered him about PMMail's difficulties
with Demon's setup. Once I got him to understand that the RFC clearly
stated that UID was the *only* thing about a POP3 mailbox guaranteed to
persist from one login to the next for a given message, he quite
rapidly fixed it, but I agree that there are optimisations that could
be applied. It may be that he thought that the smtp spool was searched
every time that any action was started, POP3 does preserve 'state'
while a session is continuing so your suggestion is sensible, but I
know BoB was concerned that there would be other implementations where
this could be different.

-- 
Brian Morrison                                  bdm@fenrir.demon.co.uk
              do you know how far this has gone?
               just how damaged have I become?
                                      'Even Deeper' by Nine Inch Nails



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