Am 2005-03-05 11:51:59, schrieb Andreas Pakulat: > man fetchmailrc, expunge gilt auch f�r POP3 ;-)
Schon mal den overhead gesehen ?
Mach bei ner 30.000 Message POP3 Box ein "expunge 5" und
Du kannst Dir nen Schu� geben, denn nach jedem "expunge"
macht er ein quit und Du mu�t die Mailbox neu �ffnen...
Guck mal in die RFC's...
Niemand wird Dir "expunge" bei POP3 empfehlen, weil es
einfach nicht f�r 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
--
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