Re: Advise needed for new mail server

lst_hoe02--- via Info-cyrus <info-cyrus@xxxxxxxxxxxxxxxxxxxx> · Thu, 19 Nov 2015 16:27:46 +0100

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

Hi Mufit,

Quoting Mufit Eribol via Info-cyrus <info-cyrus@xxxxxxxxxxxxxxxxxxxx>:

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 (example.com  
--> example2.com), so that we can setup example2.com on our email  
clients on lan. The real domain example.com will be setup on our  
desktop email clients as usual. I think, using example2.com 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.
https://cyrusimap.org/mediawiki/index.php/Cyrus_Murder

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.

Regards

Andreas

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