Am 13.01.2014 15:55, schrieb Bauer, Stefan (IZLBW Extern): > Hi List, > > thank you for confirming my opinions about DNS for load balancing. I share > your opinions. > > @Peer - your advice is to use MX records. I don't think, MX-records can be > used for relayservers. > > Our flow is: > > Client -> Exchange - > Relayserver -> t...@example.com > > I only see a use case for using MX-records the other way around: > > t...@example.com -> Mailserver -> Exchange -> Client > > In the latter case, I can balance with MX records to different Relayservers. > Not from inside to outside when a relayserver is used -correct? > > Stefan >
to my knowledge in exchange outgoing relayserver is called smarthost, to setup this you have to configure sending connector, you should be able to have more then one sending connectors ( point to different relays ) with different or equal costs http://social.technet.microsoft.com/Forums/exchange/en-US/42f9c2ce-b943-487a-9660-2f6598a5e781/smarthost-costweight http://technet.microsoft.com/en-us/library/bb267003.aspx sorry i am not an exchange specialist, but fallback transport should be buildable hope this is what you search for, i wouldnt trust in pure whatever dns balancing with exchange Best Regards MfG Robert Schetterer -- [*] sys4 AG http://sys4.de, +49 (89) 30 90 46 64 Franziskanerstraße 15, 81669 München Sitz der Gesellschaft: München, Amtsgericht München: HRB 199263 Vorstand: Patrick Ben Koetter, Axel von der Ohe, Marc Schiffbauer Aufsichtsratsvorsitzender: Florian Kirstein
