I believe the answer to my question is on this page

RestrictPostfixSenders - Zimbra :: Wiki

Thanks fo your help.

Thanks for the quick reply.

I will start searching about compromised accounts, and I've made some adjustments to our password policy. hopefully that will help.

The 'Persona' feature, can this...

Earlier today my zimbra server was hijacked and messages were being sent out appearing to be from another domain. I've captured some of the messages in the hold queue.

If my user is...

About 2 weeks ago we switched our firewall, the thing we didn't know about this new firewall (managed solution) was that it was performing NAT on incoming packets, so the traffic appeared to be from...

Currently in our setup every account should have an alias associated with it. Is there a way search for all accounts that do not have an alias?

I tried searching the forums, but couldn't find...

What is the status of this RFE? The only way I've found to export a full mailbox to pst is to open it in outlook and export it to pst from there.

I have started looking at the zipped format using...

Thanks for all the help, unfortunately I don't have the advanced attributes available in my web GUI (I'm running v4.5), but the zmaccts command gave me exactly what i was looking for. This gives me...

Is there anyway I can find out the last login time for my users?

I have about 1000 users on my system, and I don't believe that all of them are still active. I was wondering if there is a query I...

That is a good idea, currently I have inherited this setup, currently many users share generic windows logins (ie sales, service), but they already have zimbra accounts. I am trying to push to put...

I don't think I was clear enough in my original post, I need the exchange users to see the zimbra GAL, unfortunately exchange is picky about how it generates it's GAL.

I guess this cannot be done :(

bumb......

Currently we have must of our users on Zimbra, but we have some of our head office users on exchange. The exchange users have a Zimbra mailbox that is forwarded to the exchange server.

Is there a...