On 19.11.14 16:36, Bernd Wurst wrote: >But I recently found out that the freaky "is my MX set up right" tool at >MX Toolbox (and no other tool I know) complains about IP address in MX >records. They state that this is completely ok. Not even a warning: >http://mxtoolbox.com/SuperTool.aspx?action=mx%3aisoloc.com&run=toolpage
should be fixed apparently. as someone said in bind-users mailing list, such tools often exist to sell DNS service to customers... >That lead my to the question: WHY is it so bad to have IP addresses in >MX? the MX record points to a hostname by definition. The hostname (and only the hostname) points to address (by definition). >My current example is mail from the Domain "isoloc.com": >isoloc.com. 600 IN MX 10 217.160.79.52. >isoloc.com. 600 IN MX 10 smtp.isoloc.com. there is no TLD named 52. in fact, the MX points to nonexistent host "217.160.79.52." (see the trailing dot?). -- Matus UHLAR - fantomas, uh...@fantomas.sk ; http://www.fantomas.sk/ Warning: I wish NOT to receive e-mail advertising to this address. Varovanie: na tuto adresu chcem NEDOSTAVAT akukolvek reklamnu postu. He who laughs last thinks slowest. ------------------------------------------------------------------------------ Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server from Actuate! Instantly Supercharge Your Business Reports and Dashboards with Interactivity, Sharing, Native Excel Exports, App Integration & more Get technology previously reserved for billion-dollar corporations, FREE http://pubads.g.doubleclick.net/gampad/clk?id=157005751&iu=/4140/ostg.clktrk _______________________________________________ courier-users mailing list courier-users@lists.sourceforge.net Unsubscribe: https://lists.sourceforge.net/lists/listinfo/courier-users
