Am 2005-03-05 11:51:59, schrieb Andreas Pakulat:
> man fetchmailrc, expunge gilt auch für POP3 ;-)
Schon mal den overhead gesehen ?
Mach bei ner 30.000 Message POP3 Box ein "expunge 5" und
Du kannst Dir nen Schuß geben, denn nach jedem "expunge"
macht er ein quit und Du mußt die Mailbox neu öffnen...
Guck mal in die RFC's...
Niemand wird Dir "expunge" bei POP3 empfehlen, weil es
einfach nicht für POP3 gemacht wurde.
Aus der:
__( manpage 'fetchmailrc' )___________________________________________
/
| fetchmail(1) fetchmail(1)
<snip>
| -e <count> | --expunge <count>
| (keyword: expunge) Arrange for deletions to be made
| final after a given number of messages. Under POP2
| or POP3, fetchmail cannot make deletions final
^^^^ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
| without sending QUIT and ending the session -- with
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
| this option on, fetchmail will break a long mail
^^^^^^^^^^^^^^^^^^^^^^^^^
| retrieval session into multiple subsessions, send
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
| ing QUIT after each sub-session. This is a good
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
| defense against line drops on POP3 servers that do
| not do the equivalent of a QUIT on hangup. Under
| IMAP, fetchmail normally issues an EXPUNGE command
| after each deletion in order to force the deletion
| to be done immediately. This is safest when your
| connection to the server is flaky and expensive, as
| it avoids resending duplicate mail after a line
| hit. However, on large mailboxes the overhead of
| re-indexing after every message can slam the server
| pretty hard, so if your connection is reliable it
| is good to do expunges less frequently. Also note
| that some servers enforce a delay of a few seconds
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
| after each quit, so fetchmail may not be able to
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
| get back in immediately after an expunge -- you may
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
| see "lock busy" errors if this happens. If you
| specify this option to an integer N, it tells
| fetchmail to only issue expunges on every Nth
| delete. An argument of zero suppresses expunges
| entirely (so no expunges at all will be done until
| the end of run). This option does not work with
| ETRN or ODMR.
<snip>
| fetchmail(1)
\______________________________________________________________________
Also bei POP2/POP3 alles andere als zu empfehlen...
> Andreas
Greetings
Michelle
--
Linux-User #280138 with the Linux Counter, http://counter.li.org/
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50, rue de Soultz MSM LinuxMichi
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