Zimbra Forums

If you did that, nobody would be able to send you e-mail. What happens when someone at gmail wants to e-mail you? Gmail's server doesn't have a username/password on your system. To your server, gmail is just another client connecting to port 25 trying to send some e-mail to your users.

well for one there would be no way for me to lookup all accounts just using your smtp server but in the spirit of the question, whats to stop me from faking your ceo's address using my mail server? this kind of thing has been happening forever. SPF and DKIM were invented to solve this kind of proble...

doesn't look like it's been implimented yet,
Bug 24567 – Support per-user read/unread status for shared mail folders

Its the url that you get when you select the Help menu in hte upper right and choose "Help Center". Its probably cached too so you may have to flushcache (not sure which cache) or restart zimbra for it to reflect a change

maybe try reindexing? I think the error is consistent with your findings. NO_SUCH_ITEM means it can't find the mail item in the db, as opposed to NO_SUCH_BLOB where hte item exists in the db but not in the message store

could be the 'store once' thing zimbra does too. if a mail is sent to many of your users at once, it's stored only once and hardlinked for the other accounts. So it may be counted in the quota usage for multiple accounts but only be stored once

i would use imapsync

set the webmail mta host under mta settings to your mx server, that will make it so all e-mail even zimbra internal will be routed externally

have you treid using the standard ldap port instead of the global catalog port?

one thing. try changing your search base to CN=Users,DC=techlead,DC=local
Might not be the issue but I seem to remember encountering a time once where for some reason not using caps for CN, DC caused problems