High availability of Dovecot

[Patrick Westenberg]

Gerald Galster via dovecot schrieb:

> mail1.yourdomain.com <http://mail1.yourdomain.com> IN A 192.168.10.1
> mail2.yourdomain.com <http://mail2.yourdomain.com> IN A 192.168.20.1
> 
> mail.yourdomain.com <http://mail.yourdomain.com>  IN A 192.168.10.1
> mail.yourdomain.com <http://mail.yourdomain.com>  IN A 192.168.20.1
> 
> 
> mail1/mail2 is for direct connection (MTAs)
> 
> Your users (outlook, thunderbird, ...) connect to mail.yourdomain.com
> <http://mail.yourdomain.com> which returns the two ip addresses.
> 
> In this scenario MUA just connects to mail.yourdomain.com
> <http://mail.yourdomain.com> and randomly uses one of the two ips. You
> can't control which one, but this gives you active/active loadbalancing.
> In case one server is down the MUA just uses the other ip.

Are you sure that this is working?

Regards
Patrick

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