Advise needed for new mail server

lst_hoe02 at lst_hoe02 at
Thu Nov 19 10:27:46 EST 2015

Zitat von Michael Menge via Info-cyrus <info-cyrus at>:

> Hi Mufit,
> Quoting Mufit Eribol via Info-cyrus <info-cyrus at>:
>> Hello,
>> I have been successfully using postfix+cyrus-imapd (2.4.17) for our  
>> small company for years on our local server. The emails are now  
>> accounting to a size of  some 160GB. As we are having power and  
>> internet problems quite often, I rented a VPS from a world renowned  
>> hosting company and installed postfix+cyrus-imapd there.
>> My question is, as I have limited hard disk space (40GB) on VPS, I  
>> can't (and don't want to) copy all of my local emails to the VPS.  
>> The new mail server will have a fresh start. But old emails needs  
>> to be accessible on the local server as well.
>> Currently, I am planning to change the names of local domains to  
>> some non-existent name just for the internal lookup (  
>> -->, so that we can setup on our email  
>> clients on lan. The real domain will be setup on our  
>> desktop email clients as usual. I think, using on  
>> local lan just for reading mails by cyrus will work, but it is not  
>> an elegant solution.
>> I would appreciate any ideas.
> Cyrus Murder my be the solution for you.
> The Clients will only connect to one server (VPS), and the mails can  
> be stored on different
> backend servers. There is only minimal configuration change needed  
> on your old server, but you
> would need to rename the folders.
> 1 backend (VPS) for the INBOX and folders with new Mail
> 1 backend (old System) with all old folders in an archive subfolder  
> for each user
> 1 mupdate master (VPS)
> 1 frontend (VPS)
> Regards
>    Michael Menge

Depending on the mail clients used and the number of clients you can  
also simply setup the new server as a additional IMAP Account and  
disable the (incoming) SMTP service on the old server. With this you  
will have the internal IMAP server as "archive" with a lot of storage  
and the new server for internet related traffic.



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