Redirect HTTP to HTTPS in Zimbra
In Zimbra we have the options to log on using HTTP or HTTPS.
Using zmtlsctl command, we can set the Web server mode to the communication protocol options: More »
Releasing quarantined emails in Zimbra
The antivirus/antispam features in Zimbra have the ability to quarantine emails that match their criteria. We can access the quarantined emails directly in the /opt/zimbra/amavisd/quarantine folder of the file system. More »
Fetchmail for DomainPOP
Fetchmail is a mail-retrieval and forwarding utility. Using fetchmail, we can retrieves emails from remote mail server and forwards it local mail server. People usually use fetchmail to retrieve emails at the mail server hosting provider and forwards it their local mail server. More »
Upgrade Zimbra
Our mail server have been upgraded from Zimbra CS 5.0.2 to Zimbra 5.0.10.
The upgrade process didn’t take long to process, but the backup and restrore process take a quite long time. Due the performance consideration, we also have to remove the RAID-1 configuration by reinstalling the server. More »
Setup a domain catchall account in Zimbra Mail Server
Some times we want to setup a domain catchall account, so that any email not delivered to existing users in our domain will be deliver to that catchall account.
Here are the command to setup a domain catchall account: More »
Error changing default domain COS in Zimbra
When saving the changes I made in the default domain COS, I get an error message.
“Message: invalid request: LDAP schema violation: [LDAP: error code 65 – attribute ‘zimbraZimletAvailableZimlets’ not allowed] Error code: service.INVALID_REQUEST Method: ZaDomainController.prototype.saveChangesCallback Details:soap:Sender” More »
2 MX using different links for my office email
Now, our mail system is supported by 2 MX records pointing to 2 mail gateway servers that used different internet links. Those mail gateway servers are linux boxes configured with CentOS + Postfix + ASSP. Quite happy. Now we have redundant link. If one link down, the other link can support the mail system.
Migrate from M$ Exhange to Zimbra Collaboration Suite
It’s done!!! The mail system migration project already finish. As per 13 March 2008, Zimbra CS replace M$ Exhange Server. This Zimbra CS is cool, rich features, open source, and … free. Running in Linux box with CentOS 5.0 .
Zimbra antivirus not started
This morning (12 Feb 08) my colleague told me that there is a problem with our client’s mail server. All users canoot received emails. This company use Zimbra CS. The POP3 and SMTP service was running. Later on, we checked that all emails are deffered. Those mail are deffered because of the antivirus service are stop processing all those emails. More »
Tags: antivirus, Mail server, zimbra