Advise needed for new mail server

Michael Menge michael.menge at
Thu Nov 19 10:05:32 EST 2015

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)


    Michael Menge

M.Menge                                Tel.: (49) 7071/29-70316
Universität Tübingen                   Fax.: (49) 7071/29-5912
Zentrum für Datenverarbeitung          mail:  
michael.menge at
Wächterstraße 76
72074 Tübingen

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