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I need to disable sending and receiving e-mail from our Zimbra installation :-( The college I work for has merged with another and for the time being we want to allow staff 'read only' access to the 'old' Zimbra installation. That is they can read their old e-mails but not send or receive any new mail.
Understandably the documentation doesn't help me much with this so I'd appreciate any assistance.
How about blocking port 25 at the firewall, or using iptables on the zimbra server to do the same. That would stop inbound connections, and prevent people from being able to mail out.
Is there a simpler way of disabling sending and receiving e-mails? I understand that blocking the firewall disables the capability to send and receive e-mails from external to internal and internal to external network. I am looking into disabling internal to internal mail routing for the users to just be able to retrieve their remaining emails in Zimbra mailbox. Thanks in advance!
While you were waiting for an answer did you search the forums or wiki because this has been answered many times and there's even wiki article about it - search the wiki for the word "restrict".
Bugzilla
Wiki
Source
How do I disable sending and receiving? 
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