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
-- Westenberg + Kueppers GbR Spanische Schanzen 37 ---- Buero Koeln ---- 47495 Rheinberg pwestenberg@wk-serv.de Tel.: +49 (0)2843 90369-06 http://www.wk-serv.de Fax : +49 (0)2843 90369-07 Gesellschafter: Sebastian Kueppers & Patrick Westenberg