[zimbra@mail root]$ /opt/zimbra/bin/zmcontrol startup
Host mail.mydomain.com
Starting ldap...Done.
FAILED
bdb_db_close: txn_checkpoint failed: Invalid argument (22)
backend_startup_one:...

Did you solve this problem? How did you solve? Could you please tell me how to fix this problem. Thanks in advance.

How to dump my LDAP data? I am new to Linux. My OS is Fedora core 5. Thanks in advance.

Don't create a new COS. Only do it as below:
Enter Admin console, Class of Service --> default --> Themes --> use your theme in "Current UI theme" .

Now, if you create a new user, the default...

I really have no experience about web mail system migration. So I want to know what should I know about Ensim? Could you please give me some guides like:

First step, what should I know about...

I am doing research on how to migrate user account, mail content, and addressbook from Ensim to Zimbra. If it is easy, I will persuade my client change to Zimbra. But I have no idea about exsiting...

I follow your way, it doesn't work. How can I unlinks that I did links before? Thanks.

Follow this instruction:
This will definitely happen if you have bad SPF records. If you've recently changed your email architecture, you might have forgotten that. Check out your domain at...

How to fixed? Thanks.

My OS is Windows XP!
Anybody has any comments. Thanks in advance.