Flushed my DNS cache on my DC this morning.....voila. Mail hung in the queue magically starts to appear. I had flushed the Exchange servers already but hadn't "thunk" to do it on the DC.
On Wed, Oct 8, 2014 at 11:49 AM, Candee <[email protected]> wrote: > Can you telnet into the receiving server and send a message? > > > On Tue, Oct 7, 2014 at 10:08 PM, <[email protected]> wrote: > >> I was leaning towards this too, yet I can send to most domains. >> >> Sent from my BlackBerry 10 smartphone. >> *From: *Micheal Espinola Jr >> *Sent: *Tuesday, October 7, 2014 7:55 PM >> *To: *exchange >> *Reply To: *[email protected] >> *Subject: *Re: [Exchange] 421 4.2.1 Unable to connect errors >> >> Have you also tested the sending domain? I'm partial to this being an >> RDNS-related issue. >> >> -- >> Espi >> >> >> On Tue, Oct 7, 2014 at 5:06 PM, <[email protected]> wrote: >> >>> Receiving >>> >>> Sent from my BlackBerry 10 smartphone. >>> *From: *Micheal Espinola Jr >>> *Sent: *Tuesday, October 7, 2014 6:55 PM >>> *To: *exchange >>> *Reply To: *[email protected] >>> *Subject: *Re: [Exchange] 421 4.2.1 Unable to connect errors >>> >>> is animikisee.ca the sending or receiving domain? >>> >>> -- >>> Espi >>> >>> >>> On Tue, Oct 7, 2014 at 4:23 PM, Steve Ens <[email protected]> wrote: >>> >>>> Looks to be listed on the mailpolice sites. Never heard of those >>>> before. I turned off blacklisting on the animikisee.ca site >>>> altogether. Still same thing. >>>> >>>> On Tue, Oct 7, 2014 at 5:56 PM, Micheal Espinola Jr < >>>> [email protected]> wrote: >>>> >>>>> Do your tested results show anything different on this site? >>>>> >>>>> http://www.blacklistalert.org/ >>>>> >>>>> -- >>>>> Espi >>>>> >>>>> >>>>> On Tue, Oct 7, 2014 at 1:02 PM, Steve Ens <[email protected]> wrote: >>>>> >>>>>> Yes, already tried that. I can do a MX lookup, but cannot telnet to >>>>>> the server. Also getting this in the logs Error Code: 10061, Error >>>>>> Message: No connection could be made because the target machine actively >>>>>> refused it >>>>>> That seems to point to us being blacklisted, but I come up clean on >>>>>> the mxtoolbox tests. >>>>>> >>>>>> On Tue, Oct 7, 2014 at 2:48 PM, Kennedy, Jim < >>>>>> [email protected]> wrote: >>>>>> >>>>>>> What are the domains? Could be bad bounces from spam to >>>>>>> non-existent domains Your server can not contact them, so it tried >>>>>>> alternates either in dns or per the RFC’s (for example A record of >>>>>>> domain.com) and that failed. So it is still trying. >>>>>>> >>>>>>> >>>>>>> >>>>>>> Do an MX lookup from your transport server to verify your DNS is >>>>>>> working. Then try telnet port 25 from the transport server to that IP to >>>>>>> verify connectivity. What do you get? >>>>>>> >>>>>>> >>>>>>> >>>>>>> *From:* [email protected] [mailto: >>>>>>> [email protected]] *On Behalf Of *Steve Ens >>>>>>> *Sent:* Tuesday, October 7, 2014 3:42 PM >>>>>>> *To:* [email protected] >>>>>>> *Subject:* [Exchange] 421 4.2.1 Unable to connect errors >>>>>>> >>>>>>> >>>>>>> >>>>>>> Odd errors in my mail queue. Just started appearing yesterday. >>>>>>> Most mail gets sent, but from certain domains I get these errors. >>>>>>> "Attempted failover to alternate host, but that did not suceed." >>>>>>> Anyone >>>>>>> see this before? Exchange 2010 on Windows 2008 R2. >>>>>>> >>>>>> >>>>>> >>>>> >>>> >>> >>> >> >> >
