John, The likely problem with yahoo & hotmail& gmail Is that it will use reverse lookup to ensure that the email is coming from a legit domain address. For example, if you go to dnsstuff.com and put in your domain name to check that all your dns records are correct, you will likely notice that the reverse entry for the mail.mydomain.com is probably not there, or providing erroneous info. If you are authoiritative for your domain (you control all of your DNS records), you need to make sure that the reverse zone (in my case 63.192.206-in-addr-arpa zone file) has an entry for the mx record. It could also be that your ISP (if you are not your ISP) will have to enter a record in their reverse zone file to recoird your MX record properly. Hope this helps Gabe Rincón Computer Technologies 225-293-2844 From: exchangelist-bounce@xxxxxxxxxxxxx [mailto:exchangelist-bounce@xxxxxxxxxxxxx] On Behalf Of John L. Gitzen II Sent: Saturday, October 20, 2007 4:53 AM To: exchangelist@xxxxxxxxxxxxx Subject: [ExchangeList] Re: How to Clear Up Queues (and solve some of my problems!) Simon, Thank you for the quick response. I started the process to set up SMTP connectors, but my process kept failing because of authorization. As it turns out I had two different problems with my DNS setup. Please note that DNS primary runs on the DC which I did not set up. It was configured to not allow Recursion, so my Exchange Server could never get external server address to connect the SMTP connectors with. Once that was corrected my email started flowing. The problem I was having with setting up the SMTP connectors was also likely a DNS issue. I had started to install DNS on my Exchange Server setting it up as a Secondary zone with replication from the primary DNS, but once I got into the wizard I got scared and cancelled the installation. This left DNS defined to my server but not replicating. It had no entries, including pointers to my own DC where my active directory also resides, so the wizard to define the SMTP connector failed every time because the AD check failed to even find the AD server. Almost all of my email is now flowing in and out just great - except to my yahoo.com email address. Since I use this address a lot to test and I initiate a lot of email from it, I would like to get this corrected, so I am considering the SMTP Connector route for this one domain. I posted an inquiry on yahoo.com's Contact Us link but I don't expect any amazing solutions from them. Has anyone ever had this problem and how did you approach the vendor? I think my site or my personal email address may be on yahoo.com's grey list, but I have no way to prove it. I know that the Troubleshooting Assistant shows the email leaving my site and going to mta300.mail.mud.yahoo.com, but that is as far as I can tell it gets. Also be advised that earlier yesterday I was able send and receive from my yahoo.com email address Thanks John Technology Applied -----Original Message----- From: exchangelist-bounce@xxxxxxxxxxxxx [mailto:exchangelist-bounce@xxxxxxxxxxxxx] On Behalf Of Simon Butler Sent: Wednesday, October 17, 2007 5:21 AM To: 'exchangelist@xxxxxxxxxxxxx' Subject: [ExchangeList] Re: How to Clear Up Queues (and solve some of my problems!) Quick way to deal with those messages while you wait for the DNS to clear is to setup an SMTP connector to route email via your ISPs SMTP server. http://www.amset.info/exchange/smtp-connector.asp Also don't forget that the retry times for Exchange increase over time, so the longer it goes the more time between retries. However setup an SMTP Connector and the messages will be gone. Finally - it isn't really the MX record that is causing the problem - but PTR (aka reverse DNS) records. You need to speak to your ISP about those. Ideally you should have the server announcing itself as the same name as on the reverse DNS. Your current reverse DNS record looks like a dynamic allocation, so messages will get rejected. Simon. -- Simon Butler MVP: Exchange, MCSE Amset IT Solutions Ltd. e: simon@xxxxxxxxxxx w: www.amset.co.uk w: www.amset.info Need cheap certificates for Exchange, compatible with Windows Mobile 5.0? Go to http://www.certificatesforexchange.com/ for certificates for just $20 a year. ________________________________ From: exchangelist-bounce@xxxxxxxxxxxxx [mailto:exchangelist-bounce@xxxxxxxxxxxxx] On Behalf Of John L. Gitzen II Sent: 17 October 2007 07:57 To: exchangelist@xxxxxxxxxxxxx Subject: [ExchangeList] How to Clear Up Queues (and solve some of my problems!) Hello Exchange Experts! I have over 100 queues with SMTP Connector Entries for outgoing mail that is not making it to their intended recipients. I have had some problems with my DNS records and understanding how DNS works with my external webhosting company and also my Internet Provider. I hope I have those correctly set now, but with the lag in DNS records being refreshed and then Email servers recognizing the changes I am frustrated to say the least waiting to see if my email problems will clear up. At this point I can not send out email from a user on my Exchange server to any of the addresses I can query on - yahoo.com, gmail.com, Comcast.net or charter.net. They all sit waiting on the remote server to respond. So two questions - 1. How do I clear up these SMTP connector entries? Being an old school mainframer, I am used to getting error messages, being able to look them up to find the root cause and having tools I can run to tell what is going on. If they are available for Exchange they are pretty well hidden. The closest I can find is the Troubleshooting Assistant, but in my case it is not giving me back anything I can use. On my last pass it told me that it had a fatal error accessing active directory. a. The two corrections listed were to try connecting to exchange server analyzer without specifying a domain controller. I don't see where the tool ever asks for a domain controller. Under advanced login options I could specify a domain, but I don't use the advanced login, the id I am logged on with is as high up in our Active Directory as you can get. I specify an Exchange Server name and a Global Catalog Server Name. It won't run without these. b. The other possible solution says to specify a domain controller that is running and is available to you. I only have 1 domain controller, it is running, and it is available to me. I checked Active Directory on it and it is working. I have accessed the Exchange portions of the Active Directory Users on the same server, which is my exchange server that I am running my test on. I have tried to reboot both servers - AAARGGH - Nothing changed, the same results. c. Regardless of this lame solution, I have reason to believe my outgoing email is not making it to their intended SMTP connectors because the DNS MX record at the site hosting my domain was pointing to mail.thompsonig.com instead of exchangesrvr.thompsonig.com. The email going out was coming from exchangesrvr.thompsonig.com, but when the servers to a DNS lookup on thompsonig.com, it was finding mail.thompsonig.com. exchangesrvr.thompsonig.com would match the *.thompsonig.com A record that pointed to the web hosting IP address and not the ip address for my Exchange Server. So now that this is fixed - how do I get my outgoing email moving again and this stuff cleaned up 2. Second, is there a way I can test DNS and Email changes without having to wait 24 to 48 hours? This is an eternity when you have the whole company breathing down your back. My domain is thompsonig.com. my ip address for my email server should be 188.8.131.52. my Exchange server FQDN is exchangesrvr.thompsonig.com. Any and all advice is appreciated. Sorry for the long winded email, it is late. John Technology Applied The more I learn the more I realize I don't know!