** Description changed: When sendmail is configured with both IPv4 and IPv6 interfaces, it can fail to deliver to any hosts that have a CNAME as an MX record that resolves only to an A record with no AAAA record. An existing example of this is here: http://serverfault.com/questions/482035/sendmail-issue-with-ipv6 + + IMPACT: if ipv6 is routable, sendmail suddenly cannot deliver email to a + subset of servers with slightly misconfigured MX records. + + TEST CASE: + - bring up routable ipv6 interface + - install and configure sendmail-bin + - Run "date | sendmail -v -Am -d61.14 -d16.14 [email protected]" + - observe failure "makeconnection: cannot bind [IPv6:nnnnn....]: Address family not supported by protocol" + + REGRESSION POTENTIAL: low. This is an upstream patch backported + specifically for this version of sendmail. Proper operation is trivially + verifiable.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1223633 Title: attempts to bind to wrong interface for CNAME-to-A-only MX when ipv6 available To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/sendmail/+bug/1223633/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
