The mailing list for listmasters using Sympa

[Serge Aumont <address@concealed>]

Mike Stone wrote:
> Hi,
>
> I've read through the FAQ and have setup Sympa on a single machine 
> (CentOS 5, MySQL etc..) with the performance suggestions outlined in 
> the FAQ. 
> Is it possible to run Sympa behind a load balancer VIP?  Something 
> along the lines of:
>
>   
>                                   VIP - load balances port 25
>
>                              Sympa1       Sympa2   Sympa3    etc...
>
>
> It doesn't appear to me that Sympa's MySQL server is really necessary 
> for normal mail flow - only for list subcription updates and management.  
No. MySQL Server is really necessary for nearly all services. Mail 
distribution needs access to subscription table. If you need high 
disponibility you need a MySQL server with fail over capacity.

Did you have a look at this document about big servers ?
http://www.sympa.org/authors/server_architecture_for_big_services

Serge