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FAQ
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@ -1,5 +1,5 @@
#!/bin/cat
# $Id: FAQ,v 1.89 2011/07/11 01:17:39 gilles Exp gilles $
# $Id: FAQ,v 1.92 2011/08/24 06:50:17 gilles Exp gilles $
+------------------+
| FAQ for imapsync |
@ -8,14 +8,16 @@
Unix versus Windows syntax.
On Unix shells you can write a single command on multiple lines
by using the escape character \ at the end of each line
(except the last one).
(except the last one). On Windows this character is ^
Unix example:
./imapsync \
--host1 imap.truc.org --user1 foo --password1 secret1 \
--host2 imap.trac.org --user2 bar --password2 secret2
On Windows this character is ^
Windows example:
imapsync ^
--host1 imap.truc.org --user1 foo --password1 secret1 ^
@ -47,8 +49,8 @@ R. http://www.linux-france.org/prj/imapsync/FAQ
=======================================================================
Q. How can I have commercial support?
R. Ask the imapsync author and expert: Gilles LAMIRAL
Rates per hour (2011) : 84 euros (111 USD)
R. Buy support from imapsync author and expert: Gilles LAMIRAL
http://ks.lamiral.info/imapsync/#buy_support
=======================================================================
Q. How can I have gratis support?
@ -76,31 +78,36 @@ post to this list if you want to stay private.
Thank you for your participation.
=======================================================================
Q. Where I can read up on the various IMAP RFCs?
Q. I need to migrate hundred accounts, how can I do?
R. Here:
R. If you have many mailboxes to migrate think about a little
shell program. Write a file called file.csv (for example)
containing users and passwords.
The separator used in this example is ';'
RFC 3501 - INTERNET MESSAGE ACCESS PROTOCOL - VERSION 4rev1
http://www.faqs.org/rfcs/rfc3501.html
The file.csv file contains:
RFC2683 - IMAP4 Implementation Recommendations
http://www.faqs.org/rfcs/rfc2683.html
user001_1;password001_1;user001_2;password001_2
user002_1;password002_1;user002_2;password002_2
user003_1;password003_1;user003_2;password003_2
user004_1;password004_1;user004_2;password004_2
user005_1;password005_1;user005_2;password005_2
...
RFC 2595 - Using TLS with IMAP, POP3 and ACAP
http://www.faqs.org/rfcs/rfc2595.html
On Unix the shell program can be:
RFC 2822 - Internet Message Format
http://www.faqs.org/rfcs/rfc2822.html
{ while IFS=';' read u1 p1 u2 p2; do
imapsync --host1 imap.side1.org --user1 "$u1" --password1 "$p1" \
--host2 imap.side2.org --user2 "$u2" --password2 "$p2" ...
done ; } < file.csv
RFC 2342 - IMAP4 Namespace
http://www.faqs.org/rfcs/rfc2342.html
On Windows the batch program can be:
RFC2180 - IMAP4 Multi-Accessed Mailbox Practice
http://www.faqs.org/rfcs/rfc2180.html
RFC 4549 - Synchronization Operations for Disconnected IMAP4 Clients
http://www.faqs.org/rfcs/rfc4549.html
FOR /F "tokens=1,2,3,4 delims=; eol=#" %%G IN (file.csv) DO imapsync ^
--host1 imap.side1.org --user1 %%G --password1 %%H ^
--host2 imap.side2.org --user2 %%I --password2 %%J ...
The ... can be replaced by nothing or any supplementary imapsync option.
=======================================================================
Q. Where I can find old imapsync releases?
@ -190,26 +197,34 @@ The sent time and date are given by the "Date:" header and it is set
most of the time by the MUA (Mail User Agent, Mutt, Eudora,
Thunderbird etc.).
imapsync does not touch any header since the header is used to
identify the messages in both parts.
imapsync does not touch any byte of messages unless told to do so
by an option. Messages on both parts should be identical
(some IMAP servers add or even change header lines).
Solutions:
a) use --idatefromheader to set the internal dates on host2 same as the
"Date:" headers.
b) In Maildir boxes, after the sync (too late...), use the script
a) Use the --syncinternaldates option and keep using Eudora.
But --syncinternaldates is now turn on by default so if you
encounter the issue then the solution is harder, depending
on email client softwares and IMAP server softwares.
b) use --idatefromheader to set the internal dates on host2 same as the
"Date:" headers. It won't work if a) doesn't work.
c) In Maildir boxes, after the sync (too late...), use the script
learn/adjust_time.pl to change the internal dates from the "Date:" header.
c) Don't use buggy Eudora.
d) Use the --syncinternaldates option and keep using Eudora.
--syncinternaldates is now turn on by default.
d) Use a better email client.
=======================================================================
Q. imapsync calculates 479 messages in a folder but only transfers 400
messages. What's happen?
R1. imapsync considers the header part of a message (as a whole or
only specific lines depending on --useheader --skipheader)
to identify a message on both sides.
R1. Unless --useuid is used, imapsync considers the header part
of a message to identify a message on both sides.
Header part is taken as a whole with "--useheader ALL" or
only specific lines depending on --useheader --skipheader
or default values.
Consequences:
@ -222,6 +237,22 @@ R2. With option --useuid imapsync doesn't use headers to identify
messages on both sides but it uses their imap uid. In than case
duplicates are transfered and --delete2 won't work.
=======================================================================
Q. I need to log every output on a file named log.txt
R. Use redirections of both standard and error outputs "> log.txt 2>&1"
imapsync ... > log.txt 2>&1
=======================================================================
Q. I need to log every output on a file named log.txt and also to the
screen in order to keep seeing what's going on during execution
R. Use the tee program (also available on Windows)
http://en.wikipedia.org/wiki/Tee_%28command%29
imapsync ... 2>&1 | tee log.txt
=======================================================================
Q. I run multiple imapsync applications at the same time then get a
warning "imapsync.pid already exists, overwriting it".
@ -1241,3 +1272,31 @@ R. You'll find an RPM imapsync.spec file in the directory learn/rpm/
It has been tested with imapsync 1.434 (May 2011) on CentOS5
and RedHat RHEL5 Linux. (Thanks to Ole Holm Nielsen).
This imapsync.spec is derivated from Neil Brown work in 2007.
=======================================================================
Q. Where I can read up on the various IMAP RFCs?
R. Here:
RFC 3501 - INTERNET MESSAGE ACCESS PROTOCOL - VERSION 4rev1
http://www.faqs.org/rfcs/rfc3501.html
RFC2683 - IMAP4 Implementation Recommendations
http://www.faqs.org/rfcs/rfc2683.html
RFC 2595 - Using TLS with IMAP, POP3 and ACAP
http://www.faqs.org/rfcs/rfc2595.html
RFC 2822 - Internet Message Format
http://www.faqs.org/rfcs/rfc2822.html
RFC 2342 - IMAP4 Namespace
http://www.faqs.org/rfcs/rfc2342.html
RFC2180 - IMAP4 Multi-Accessed Mailbox Practice
http://www.faqs.org/rfcs/rfc2180.html
RFC 4549 - Synchronization Operations for Disconnected IMAP4 Clients
http://www.faqs.org/rfcs/rfc4549.html