[Dovecot] Maildir over NFS

[Patrick Domack]

Quoting CJ Keist <cj.keist at colostate.edu>:

> I'm working on bring up a new mail server to replace our current  
> one.  Our current mail server is running dovecot 1.1.16, with  
> postfix using mbox format.  User inboxes are stored locally on the  
> mail server and all other mail folders in users home directory under  
> mail which is NFS mounted on the mail server.
>
> For our new mail server I'm looking to switch to the Maildir format.  
>  Some years ago I remember reading that it was not recommended to  
> run Maildir format over NFS.  Now I'm looking at several posts that  
> seem to indicate that Maildir should run fine over NFS.  I'm a  
> little concerned about running Maildir over NFS, especially from the  
> howto conversion pages I read would move all messages over to the  
> User ~/Maildir folder including the inbox.  So having every single  
> mail transaction going over NFS doesn't seem the smart thing to do.
>
> So question I have for the dovecot team, does running Maildir over  
> NFS work well?  Or would you recommend that all user mail folders be  
> stored locally on the mail server when using Maildir?
>
> We have about 3400 users, doing about 30k mail deliveries daily.   
> Some users have 10's of thousands of mail messages in hundreds of  
> mail folders.
>

I'm happy with maildir on nfs (netapp), doing 3million receiving per day.

Looking at the new methods for v2.0, still on the fence though with them.