Hi,
Post by SergeyHello
Can I see number of deleted messages per IMAP sessions?
This is useful when communicating with the user sometimes.
cyrus/imap[862231]: login: .... User logged in
SESSIONID=<cyrus-862231-1541832038-1-29129931007288367>
cyrus/imap[862231]: USAGE .... user: 0.228965 sys: 0.244962
cyrus/pop3[19165]: .... User logged in
SESSIONID=<cyrus-19165-1540823180-1-15155256727332989489>
cyrus/pop3[19165]: Expunged 160 messages from ....
cyrus/pop3[19165]: USAGE .... user: 0.564000 sys: 0.516000
cyrus/pop3[19165]: counts: retr=<160> top=<0> dele=<160>
Are you sure messages have been "Deleted" via IMAP EXPUNGE command?
To clarify this: Deleting mails is a 2 or 3 stage process depending on
your configuration.
1. the mails are marked as deleted.
===== Example from RFC 3501 =====
C: A003 STORE 2:4 +FLAGS (\Deleted)
S: * 2 FETCH (FLAGS (\Deleted \Seen))
S: * 3 FETCH (FLAGS (\Deleted))
S: * 4 FETCH (FLAGS (\Deleted \Flagged \Seen))
S: A003 OK STORE completed
===================================
This is normally not logged by cyrus but you can see the number of Messages
with the Deleted Flag with
mbexamine user/userID | grep "^ Deleted:"
The Client can still see these messages. Some Clients use this to allow the
user to "undelete" Mails other kopie/move the mails to a trash folder and
use the second step to remove the mails form the original folder.
You can try enable the "auditlog" option in your imapd.conf if you really
need to know this.
2. the mails marked as deleted are removed form the mailbox with the
expunge command.
==== Quoting RFC 3501 =========
Example: C: A202 EXPUNGE
S: * 3 EXPUNGE
S: * 3 EXPUNGE
S: * 5 EXPUNGE
S: * 8 EXPUNGE
S: A202 OK EXPUNGE completed
Note: In this example, messages 3, 4, 7, and 11 had the
\Deleted flag set. See the description of the EXPUNGE
response for further explanation.
===============================
This is logged by cyrus in the same way you have seen for pop3
But can happen
multiple times in the same imap session.
3. depending of your "expunge_mode" setting in imapd.conf the mails
deleted in step 2
are still on your disk and are deleted by cyr_expire at a later time.
you can see and restore the mails that have been EXPUNGE by the client,
but not deleted by cyr_expire with the "unexpung" command see man page
for more details
Deleting mails form disk by cyr_expire was logged for each
mailbox in cyrus 2.3
and 2.4 in cyrus 3.0 it is logged only once per cyr_expire run.
restoring mails with unexpung is also logged by cyrus.
unexpunge[363]: restored 1 expunged messages in mailbox 'user/userID'
Regarding POP3 the messages Deleted in the Session are marked as
deleted and are expunged
automatically with the quit command by the client at the end of the session.
--------------------------------------------------------------------------------
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Universität Tübingen Fax.: (49) 7071/29-5912
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