-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Am 13.01.2014 14:23, schrieb Bauer, Stefan (IZLBW Extern): Hi Stefan,
> We want to load balance mails from the intranet to the postfix-relayserver-farm for outgoing traffic. > Can we abuse A-records to load-balance in the same way MX-records have been designed? No, because in that case MX-Records would be useless. > A relay.example.com 192.168.0.1 A > relay.example.com 192.168.0.2 > > We want to have the client load-balance between the two servers. > And more important to skip to the second if > one is not available anymore. Which Software do you use? It could be, that the client will always use those IPs round-robin and NOT make an failover to the other IP address if one is down. > Is this rfc compliant and can be seen as best practice? IMHO: No. I hate misusing Round-Robin-A-Records for mailserver failover setups. > Honestly speaking is this something an administrator should do? :) In my opinion: That's exactly what he NOT should do. Use MX-Records. That what they are made for. Peer - -- Heinlein Support GmbH Schwedter Str. 8/9b, 10119 Berlin http://www.heinlein-support.de Tel: 030 / 405051-42 Fax: 030 / 405051-19 Zwangsangaben lt. §35a GmbHG: HRB 93818 B / Amtsgericht Berlin-Charlottenburg, Geschäftsführer: Peer Heinlein -- Sitz: Berlin -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.22 (GNU/Linux) iQEcBAEBAgAGBQJS0/WkAAoJEAOLLpq5E82HpsIIAL8K7FoPtx0iYLcoBkqkMGYY PzM6uL6S+TG19KGt/ESuz4SBwFy4syiGcMaBw+4zzSX6y8AeBg1Tjv9YDtvznqFA NFM3pWhMjo0o5NJPkh3+ouPYhDiWxHu7uamAPvyb1FcVqZGnpriD4zXc0l9YrhZ2 907z7+bNcx3gvH3CB0UMY2rp9bHvQPZC+obdh5UeBfnc6YEtsJ1SsfdX6H/lp4P0 rAuWtyMeZ1bQgohocMRCqGkCNZIyR2LNEkl8UUcyMpWsKk6CU9cqZnHsaa7FsMFx dltZB1TremChwAe5nCst38/PQ3awDtzgpvfRNeXfbPWe1iuLhp7l653bNrDfr9Y= =nXop -----END PGP SIGNATURE-----
