• Status: Solved
  • Priority: Medium
  • Security: Public
  • Views: 723
  • Last Modified:

Blacklist/Email delivery problems Exchange 2007

I setup a new mail server and tested everything at exchangeconnectivitytester.com and everything passes with flying colors. SPF, and PTR records and nslookup looks good so it didnt appear to be an rDNS issue. MXtoolbox.com also shows the server is not on any blacklists but I am getting the following errors when sending email only to ATT or earthlink email addresses:

*NOTE* I have edited the names of the server and IP addresses for privacy and client confidentiality reasons.

Diagnostic information for administrators:

Generating server: SERVER.xxxxxxxx.local
att.net #521-xx.xx.xxx.xxx blocked by sbc:blacklist.mailrelay.att.net. 521 DNSRBL: Blocked for abuse. See http://att.net/blocks ##


Diagnostic information for administrators:

Generating server: SERVER.xxxxxxxx.local
mx-mcdonald.atl.sa.earthlink.net #550 IP xx.xx.xxx.xxx is blocked by EarthLink. Go to earthlink.net/block for details. ##



 
0
qbarat2
Asked:
qbarat2
  • 4
  • 3
  • 2
1 Solution
 
ChickensaurCommented:
Maybe there was an issue with the IP you are using previously and Earthlink has not updated their list yet?  I would recommend contacting them and request that you be taken off their list.
0
 
qbarat2Author Commented:
I did that with ATT already and it was over 2 weeks ago. Initially I thought that the IP might have just been on their block list from before the server was installed, but now this Earthlink block came through today so it's getting me concerned that it's an issue with the server.
0
 
ckeshavCommented:
Might be ATT and earthlink is using a different SPAM database from the ones you have checked.

Does it say only IP is blocked or IP range is blocked?
If only your IP is blocked then the you may have to have to configure your Anti-Spam server(if you have one) and make sure that you are generating SPAM and also follow the instruction in the http://att.net/blocks to get it unblocked

If whole IP range is blocked then you may have to esclate the issue to your ISP, they will intrun raise a request with ATT and then get it unblocked
0
Industry Leaders: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

 
qbarat2Author Commented:
It says the IP is blocked and both ATT and Earthlink say that. I already went through the procedure with ATT and got no response. I just did it with Earthlink today and am still waiting on a response. I guess the only other option is to contact he ISP?
0
 
ckeshavCommented:
You may to wait to wait for the response, usually they take 24-48hrs to respond
Make sure you have given a secondary email ID like gmail or yahoo. Because the mails they send will again may not be reachable to you if they have blocked the mails completely(inbound/outbound) to your domain

No ISP can't help you with this as they will wash out their hands saying the issue is at your end.
If you have different ISP other than the current one, then you can add secondary MX record to your smart host with a lesser cost and then add the new IP of the smart host in your Exchange Server Send connector as the primary IP to send outgoing mails.

But this all will be in vein if you do not have a proper Anti-Spam and your new IP also might get blacklisted after sometime
0
 
qbarat2Author Commented:
Ok I will keep waiting then. I just submitted another request under a different email address, I didn't think about that that email might not be able to get through so thanks for that advice. As far as a proper Anti-Spam? what does it matter if we have incoming spam filtering? As long as the server isn't being used to send spam why should this matter?
0
 
ckeshavCommented:
You never know, some of your Internal applications or clients might be generated huge amount of mail or even SPAM. The huge amount of mail might be considered SPAM.
They monitor all these
For Ex: our domain was blocked as we generated Auto generated response to all Spoof mails.
0
 
qbarat2Author Commented:
Ok, I'm going to wait 2 days and then close out the question. So far I am still blocked from earthlink even though they already told me im unblocked. I hope I didnt get blocked again. I need to wait 2-24 hours to know for sure..
0
 
ChickensaurCommented:
Yeah the spam databases can take a while to do this.

Is your Exchange server setup for open relay?  If so that will put you on a spam list all the time.  However, if it were true you probably would of been on more depending on how often they check.

Are you using any type of external spam filtering like Gmail's Positini?  That can cause an issue sometimes.

I would also check the other machines in your office and make sure they don't have a virus or malware issue.  If something is mass mailing you will be flagged.
0

Featured Post

How to Use the Help Bell

Need to boost the visibility of your question for solutions? Use the Experts Exchange Help Bell to confirm priority levels and contact subject-matter experts for question attention.  Check out this how-to article for more information.

  • 4
  • 3
  • 2
Tackle projects and never again get stuck behind a technical roadblock.
Join Now