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docs/*: Documentation enhancements

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Improve wordings and descriptions all around.

Signed-off-by: Sebastian Spaeth <Sebastian@SSpaeth.de>
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Sebastian Spaeth
2011-09-29 11:45:38 +02:00
parent c1120c9158
commit b50668434e
2 changed files with 173 additions and 95 deletions
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docs/FAQ.rst
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@@ -49,50 +49,40 @@ increase performance of the sync.
Don’t set the number too high. If you do that, things might actually slow down
as your link gets saturated. Also, too many connections can cause mail servers
to have excessive load. Administrators might take unkindly to this, and the
server might bog down. There are many variables in the optimal setting;
experimentation may help.
server might bog down. There are many variables in the optimal setting; experimentation may help.
An informal benchmark yields these results for my setup::
* 10 minutes with MacOS X Mail.app “manual cache”
* 5 minutes with GNUS agent sync
* 20 seconds with OfflineIMAP 1.x
* 9 seconds with OfflineIMAP 2.x
* 3 seconds with OfflineIMAP 3.x “cold start”
* 2 seconds with OfflineIMAP 3.x “held connection”
See the Performance section in the MANUAL for some tips.
What platforms does OfflineIMAP support?
----------------------------------------
It should run on most platforms supported by Python, which are quite a few. I
do not support Windows myself, but some have made it work there. Use on
Windows
It should run on most platforms supported by Python, with one exception: we do not support Windows, but some have made it work there.
These answers have been reported by OfflineIMAP users. I do not run OfflineIMAP
on Windows myself, so I can’t directly address their accuracy.
The following has been reported by OfflineIMAP users. We do not test
OfflineIMAP on Windows, so we can’t directly address their accuracy.
The basic answer is that it’s possible and doesn’t require hacking OfflineIMAP
source code. However, it’s not necessarily trivial. The information below is
based in instructions submitted by Chris Walker.
based in instructions submitted by Chris Walker::
First, you must run OfflineIMAP in the Cygwin environment. The Windows
filesystem is not powerful enough to accomodate Maildir by itself.
Next, you’ll need to mount your Maildir directory in a special way. There is
information for doing that at http://barnson.org/node/295. That site gives this
example::
mount -f -s -b -o managed "d:/tmp/mail" "/home/of/mail"
That URL also has more details on making OfflineIMAP work with Windows.
First, you must run OfflineIMAP in the Cygwin environment. The Windows
filesystem is not powerful enough to accomodate Maildir by itself.
Next, you’ll need to mount your Maildir directory in a special
way. There is information for doing that at
http://barnson.org/node/295. That site gives this example::
mount -f -s -b -o managed "d:/tmp/mail" "/home/of/mail"
That URL also has more details on making OfflineIMAP work with Windows.
Does OfflineIMAP support mbox, mh, or anything else other than Maildir?
-----------------------------------------------------------------------
Not directly. Maildir was the easiest to implement. I’m not planning to write
mbox code for OfflineIMAP, though if someone sent me well-written mbox support
and pledged to support it, I’d commit it to the tree.
Not directly. Maildir was the easiest to implement. We are not planning
to write an mbox-backend, though if someone sent me well-written mbox
support and pledged to support it, it would be committed it to the tree.
However, OfflineIMAP can directly sync accounts on two different IMAP servers
together. So you could install an IMAP server on your local machine that
@@ -105,22 +95,25 @@ point your mail readers to that IMAP server on localhost.
What is the UID validity problem for folder?
--------------------------------------------
IMAP servers use a unique ID (UID) to refer to a specific message. This number
is guaranteed to be unique to a particular message forever. No other message in
the same folder will ever get the same UID. UIDs are an integral part of
`OfflineIMAP`_'s synchronization scheme; they are used to match up messages on
your computer to messages on the server.
IMAP servers use a folders UIDVALIDITY value in combination with a
unique ID (UID) to refer to a specific message. This is guaranteed to
be unique to a particular message forever. No other message in the same
folder will ever get the same UID as long as UIDVALIDITY remains
unchanged. UIDs are an integral part of `OfflineIMAP`_'s
synchronization scheme; they are used to match up messages on your
computer to messages on the server.
Sometimes, the UIDs on the server might get reset. Usually this will happen if
you delete and then recreate a folder. When you create a folder, the server
will often start the UID back from 1. But `OfflineIMAP`_ might still have the
UIDs from the previous folder by the same name stored. `OfflineIMAP`_ will
detect this condition and skip the folder. This is GOOD, because it prevents
data loss.
Sometimes, the UIDs on the server might get reset. Usually this will
happen if you delete and then recreate a folder. When you create a
folder, the server will often start the UID back from 1. But
`OfflineIMAP`_ might still have the UIDs from the previous folder by the
same name stored. `OfflineIMAP`_ will detect this condition because of
the changed UIDVALIDITY value and skip the folder. This is GOOD,
because it prevents data loss.
You can fix it by removing your local folder and cache data. For instance, if
your folders are under `~/Folders` and the folder with the problem is INBOX,
you'd type this::
In the IMAP<->Maildir case, you can fix it by removing your local folder
and cache data. For instance, if your folders are under `~/Folders` and
the folder with the problem is INBOX, you'd type this::
rm -r ~/Folders/INBOX
rm -r ~/.offlineimap/Account-AccountName/LocalStatus/INBOX
@@ -146,12 +139,10 @@ This question comes up frequently on the `mailing list`_. You can find a detail
discussion of the problem there
http://lists.complete.org/offlineimap@complete.org/2003/04/msg00012.html.gz.
How do I add or delete a folder?
--------------------------------
How do I automatically delete a folder?
---------------------------------------
OfflineIMAP does not currently provide this feature. However, if you create a
new folder on the remote server, OfflineIMAP will detect this and create the
corresponding folder locally automatically.
OfflineIMAP does not currently provide this feature. You will have to delete folders manually. See next entry too.
May I delete local folders?
---------------------------
@@ -175,6 +166,7 @@ It will perform a check on startup and abort if another `OfflineIMAP`_ is
already running. If you need to schedule synchronizations, you'll probably
find autorefresh settings more convenient than cron. Alternatively, you can
set a separate metadata directory for each instance.
In the future, we will lock each account individually rather than having one global lock.
Can I copy messages between folders?
---------------------------------------
@@ -197,10 +189,7 @@ next run it will upload the message to second server and delete on first, etc.
Does OfflineIMAP support POP?
-----------------------------
No. POP is not robust enough to do a completely reliable multi-machine sync
like OfflineIMAP can do.
OfflineIMAP will never support POP.
No.
How is OfflineIMAP conformance?
-------------------------------
@@ -214,17 +203,21 @@ How is OfflineIMAP conformance?
Can I force OfflineIMAP to sync a folder right now?
---------------------------------------------------
Yes, if you use the `Blinkenlights` UI. That UI shows the active accounts
Yes,
1) if you use the `Blinkenlights` UI. That UI shows the active accounts
as follows::
4: [active] *Control: .
3: [ 4:36] personal:
2: [ 3:37] work: .
1: [ 6:28] uni:
4: [active] *Control: .
3: [ 4:36] personal:
2: [ 3:37] work: .
1: [ 6:28] uni:
Simply press the appropriate digit (`3` for `personal`, etc.) to resync that
account immediately. This will be ignored if a resync is already in progress
for that account.
Simply press the appropriate digit (`3` for `personal`, etc.) to
resync that account immediately. This will be ignored if a resync is
already in progress for that account.
2) while in sleep mode, you can also send a SIGUSR1. See the `Signals
on UNIX`_ section in the MANUAL for details.
Configuration Questions
=======================
@@ -248,10 +241,12 @@ what folders are present on the IMAP server and synchronize them. You can use
the folderfilter and nametrans configuration file options to request only
certain folders and rename them as they come in if you like.
Also you can configure OfflineImap to only synchronize "subscribed" folders.
How do I prevent certain folders from being synced?
---------------------------------------------------
Use the folderfilter option.
Use the folderfilter option. See the MANUAL for details and examples.
What is the mailbox name recorder (mbnames) for?
------------------------------------------------
@@ -261,9 +256,11 @@ Some mail readers, such as mutt, are not capable of automatically determining th
Does OfflineIMAP verify SSL certificates?
-----------------------------------------
By default, no. However, as of version 6.3.2, it is possible to enforce verification
of SSL certificate on a per-repository basis by setting the `sslcacertfile` option in the
config file. (See the example offlineimap.conf for details.)
You can verify an imapserver's certificate by specifying the CA
certificate on a per-repository basis by setting the `sslcacertfile`
option in the config file. (See the example offlineimap.conf for
details.) If you do not specify any CA certificate, you will be presented with the server's certificate fingerprint and add that to the configuration file, to make sure it remains unchanged.
No verification happens if connecting via STARTTLS.
How do I generate an `sslcacertfile` file?
------------------------------------------
@@ -293,23 +290,6 @@ with the IMAP RFCs. Some servers provide imperfect compatibility that may be
good enough for general clients. OfflineIMAP needs more features, specifically
support for UIDs, in order to do its job accurately and completely.
Microsoft Exchange
------------------
Several users have reported problems with Microsoft Exchange servers in
conjunction with OfflineIMAP. This generally seems to be related to the
Exchange servers not properly following the IMAP standards.
Mark Biggers has posted some information to the OfflineIMAP `mailing list`_
about how he made it work.
Other users have indicated that older (5.5) releases of Exchange are so bad
that they will likely not work at all.
I do not have access to Exchange servers for testing, so any problems with it,
if they can even be solved at all, will require help from OfflineIMAP users to
find and fix.
Client Notes
============
@@ -494,12 +474,13 @@ To send a patch, we recommend using 'git send-email'.
Where from should my patches be based on?
-----------------------------------------
Depends. If you're not sure, it should start off of the master branch. master is
the branch where new patches should be based on by default.
Depends. If you're not sure, it should start off of the master
branch. master is the branch where new patches should be based on by
default.
Obvious materials for next release (e.g. new features) start off of current
next. Also, next is the natural branch to write patches on top of commits not
already in master.
Obvious materials for next release (e.g. new features) start off of
current next. Also, next is the natural branch to write patches on top
of commits not already in master.
A fix for a very old bug or security issue may start off of maint. This isn't
needed since such fix are backported by the maintainer, though.