Hi Markus, I cannot say I'm an expert but as far as I know "it should".
The configuration you described is not a DNS round robin, where you tipically assign two or more IPs to same hostname. In this case the client DNS cache will cause the remote MTA to connect to a single IP until it expires (In windows you should reboot the machine). In you example you defined two different MX records with same priority I don't know wich one will be picked up first, it is also possible you will never achive a 50% load, but if anyone fails I believe a well programmed DNS/MTA SHOULD connect to the other. --------------- Franco Celli ----- Original Message ----- From: "Markus Gufler" <[EMAIL PROTECTED]> To: <[email protected]> Sent: Friday, December 24, 2004 10:11 AM Subject: [Declude.JunkMail] OT: MX priorities > I've a question I can't answer by just testing it out on my MTA because I > don't know if other MTA's will do the same thing. > > If I have 2 front end gateways servers > > IP1: 123.123.123.1 > IP2: 123.123.123.2 > > A mx1.isp.com 123.123.123.1 > A mx2.isp.com 123.123.123.2 > > And set up MX-records for domain.com like > > MX 10 mx1.isp.com > MX 10 mx2.isp.com > > The DNS ist configured to answer in round robin method. > So the load should be 50/50 on both servers. > > Now the question: should or must a remote MTA try to connect to the second > MX 10 host if the first one (also with priority 10) was not reachable? > > Is this a "must have" or could it be that some MTA's from certain vendors > will not connect to the second MX? > > Thanks in advance > Markus > --- [Quipo ISP - Questa E-mail e' stata controllata dal programma Declude Virus] [Quipo ISP - This E-mail was scanned for viruses by Declude Virus] --- [This E-mail was scanned for viruses by Declude Virus (http://www.declude.com)] --- This E-mail came from the Declude.JunkMail mailing list. To unsubscribe, just send an E-mail to [EMAIL PROTECTED], and type "unsubscribe Declude.JunkMail". The archives can be found at http://www.mail-archive.com.
