Scott, When I do a lookup of *WEB*.webengineer.com, not www, but web, it shows an A record not a cname and it has no MX record: Name: web.webengineer.com Address: 66.208.208.149
Maybe you've got a stale dns cache or they changed something? I see that WWW.webengineer.com has several mx records including web.webengineer.com: www.webengineer.com canonical name = webengineer.com webengineer.com MX preference = 20, mail exchanger = mail.webengineer.com webengineer.com MX preference = 30, mail exchanger = web.webengineer.com webengineer.com MX preference = 10, mail exchanger = dev.webengineer.com web.webengineer.com internet address = 66.208.208.149 but web.webengineer.com itself doesn't have a mx record at all. Hope this helps. On Tue, Feb 10, 2015 at 4:54 PM, Scott MacLean <[email protected]> wrote: > This is basically what I told the sender as well. > > I wasn't suggesting that ASSP were to accept the message and bounce it > later. I was saying that in this case, when you do an MX lookup on > www.webengineer.com, it shows no associated MX record, but it does show > that the A record for www.webengineer.com contains a CNAME for > webengineer.com, and THAT does in fact have an MX record. The DIG > utility is smart enough to follow this chain, I was wondering if ASSP > should be able to do the same thing. > > > > On 2/10/2015 12:47 PM, Colin wrote: > > Hi Scott, > > > > This would break many things. If we are to accept the message then > > bounce it later, where does the bounce go? Do we try to figure it out > > and send it to www instead of web. or do we just end up with a > > non-deliverable NDR sat in our queues? The former is really bad because > > someone could set up a shill domain and point it at a target to use for > > mailbombing. > > > > Really, the way that ASSP acts is in accord with how things should be > > set up on the Internet. The people responsible for webengineer.com > > should defined MX records for web. if they wish to use it to send email. > > If you want to over-ride this yourself, the best thing to do is to set a > > whitelist entry on your server. > > > > All the best, > > Colin Waring > > > > On 10/02/2015 15:54, Scott MacLean wrote: > >> I have a client who is being blocked because ASSP is reporting that > >> their domain does not have a valid MX. The domain in question is > >> www.webengineer.com: > >> > >> Feb-09-15 16:00:22 NB-15619-06295 [Worker_2] [MissingMX] {IPAddr} > >> <#####@web.webengineer.com> to: #####@####.org [scoring] MX missing > >> (cache): web.webengineer.com > >> > >> However, doing a lookup against web.webengineer.com shows: > >> > >> ;www.webengineer.com. IN MX > >> > >> ;; ANSWER SECTION: > >> www.webengineer.com. 3600 IN CNAME webengineer.com. > >> webengineer.COM. 3585 IN MX 1 mail.webengineer.com. > >> > >> So www.webengineer.com is a CNAME to webenginner.com, which in fact > DOES > >> have an MX, which is mail.webengineer.com. > >> > >> Is it possible to have ASSP follow that CNAME and do a recursive lookup > >> for MX in this type of case? > >> > >> > >> > >> > ------------------------------------------------------------------------------ > >> Dive into the World of Parallel Programming. The Go Parallel Website, > >> sponsored by Intel and developed in partnership with Slashdot Media, is > your > >> hub for all things parallel software development, from weekly thought > >> leadership blogs to news, videos, case studies, tutorials and more. > Take a > >> look and join the conversation now. http://goparallel.sourceforge.net/ > >> _______________________________________________ > >> Assp-test mailing list > >> [email protected] > >> https://lists.sourceforge.net/lists/listinfo/assp-test > > > > > ------------------------------------------------------------------------------ > > Dive into the World of Parallel Programming. The Go Parallel Website, > > sponsored by Intel and developed in partnership with Slashdot Media, is > your > > hub for all things parallel software development, from weekly thought > > leadership blogs to news, videos, case studies, tutorials and more. Take > a > > look and join the conversation now. http://goparallel.sourceforge.net/ > > _______________________________________________ > > Assp-test mailing list > > [email protected] > > https://lists.sourceforge.net/lists/listinfo/assp-test > > > > > ------------------------------------------------------------------------------ > Dive into the World of Parallel Programming. The Go Parallel Website, > sponsored by Intel and developed in partnership with Slashdot Media, is > your > hub for all things parallel software development, from weekly thought > leadership blogs to news, videos, case studies, tutorials and more. Take a > look and join the conversation now. http://goparallel.sourceforge.net/ > _______________________________________________ > Assp-test mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/assp-test > ------------------------------------------------------------------------------ Dive into the World of Parallel Programming. The Go Parallel Website, sponsored by Intel and developed in partnership with Slashdot Media, is your hub for all things parallel software development, from weekly thought leadership blogs to news, videos, case studies, tutorials and more. Take a look and join the conversation now. http://goparallel.sourceforge.net/ _______________________________________________ Assp-test mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/assp-test
