On 5/11/2016 7:45 PM, Sam Varshavchik wrote: > Bowie Bailey writes: > >> $ testmxlookup westportyachtsales.com >> Domain westportyachtsales.com: >> Relay: mail.westportshipyard.com, Priority: 10, Address: >> ::ffff:208.91.197.132 > > There's something wrong with the westportshipyard.com domain. ... > Looks to me like this domain's bill was due last month, and it was not > paid, and the registrar took ownership of it.
Looks like you are right. The westportshipyard.com website returns a Network Solutions parking page. However, that doesn't explain why testmxlookup and manual dns queries return different results. I ran a tcpdump on the mail server this morning and found that testmxlookup is requesting an AAAA record for some reason. When it doesn't get a result, it gives a soft error rather than looking for the A record (which does exist). [udp sum ok] 9540+ AAAA? mail.westportshipyard.com. (43) [udp sum ok] 9540 ServFail q: AAAA? mail.westportshipyard.com. 0/0/0 (43) How do I prevent Courier from trying to use ipv6? -- Bowie ------------------------------------------------------------------------------ Mobile security can be enabling, not merely restricting. Employees who bring their own devices (BYOD) to work are irked by the imposition of MDM restrictions. Mobile Device Manager Plus allows you to control only the apps on BYO-devices by containerizing them, leaving personal data untouched! https://ad.doubleclick.net/ddm/clk/304595813;131938128;j _______________________________________________ courier-users mailing list courier-users@lists.sourceforge.net Unsubscribe: https://lists.sourceforge.net/lists/listinfo/courier-users
