I did round robin. Unless your servers are really under a high load I think this is more then suitable.
James On Feb 16, 2010, at 8:51 AM, donovan jeffrey j wrote: > > On Feb 16, 2010, at 8:09 AM, aa wrote: > >> Someone advised me to insert in the DNS zone a list of MX records >> defined with the same level of priority so the DNS server will >> choose one of them without invoking always the same mail server.... >> It could be an idea, in my opinion, but I'd prefer a "less random" >> solution and a more scientific one.... > > very easy for smtp relays. > > smtp1 > smtp2 > > > create a dns name smtp, and your system will round robin query for the > next available server.