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I'm still being blocked by AT&T's domains
Hello again,
I thought the previous issue was resolved but my clients emails still seem to be blocked by AT&T. AT&T is of absolutely no help. I've sent in requests to be removed from the blacklist, I have a reverse DNS (PTR record setup already). My clients are fed up. They think I'm not doing something on the server end. Is there anything anyone could shed some light on for me? Thank you in advance.
I thought the previous issue was resolved but my clients emails still seem to be blocked by AT&T. AT&T is of absolutely no help. I've sent in requests to be removed from the blacklist, I have a reverse DNS (PTR record setup already). My clients are fed up. They think I'm not doing something on the server end. Is there anything anyone could shed some light on for me? Thank you in advance.
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Thank you both.
I've checked my IP and DNS on DNSstuff and it just came up with some timing out errors. They say I passed.
Good point 50centos. I can totally be running errors but, I've setup SBS 2003 for some other clients and havent gone through this before. I'm just not sure where to look internally. We have a Static IP with mail.salesresultsinc.com as our MX. We're running Brighter Mail (SPAM) and Symantec EndPoint.
I havent heard of Exchange Defender, I'll look into it and see if thats the fix we're looking for.
I've checked my IP and DNS on DNSstuff and it just came up with some timing out errors. They say I passed.
Good point 50centos. I can totally be running errors but, I've setup SBS 2003 for some other clients and havent gone through this before. I'm just not sure where to look internally. We have a Static IP with mail.salesresultsinc.com as our MX. We're running Brighter Mail (SPAM) and Symantec EndPoint.
I havent heard of Exchange Defender, I'll look into it and see if thats the fix we're looking for.
Your IP is clean.
It is an AT&T related issue probably specific to the way they have their e-mail servers set up. We have run into this once in a while.
See the screenshot report from MXToolBox.com. Your IP comes up okay.
Philip
09-01-27-MXToolbox-results.PNG
It is an AT&T related issue probably specific to the way they have their e-mail servers set up. We have run into this once in a while.
See the screenshot report from MXToolBox.com. Your IP comes up okay.
Philip
09-01-27-MXToolbox-results.PNG
Did a look-up on 69.130.20.106, this is not an AT&T IP... It belongs to TDS TELECOM in Madison, WI. As far as the 69.x.x.x address goes, your PTR/rDNS record looks fine - if you were on their network.
Also, since you mention SBS2003 & AT&T, I suspect this server's gateway is on an AT&T network - correct?
- If so, the email packets leaving your email server will show an origination IP of AT&T - not TDS. Keeping in mind that many ISP will block mail that appears to be being "relayed"...
Probably unrelated, but your (salesresultsinc.com) domain registration points to 208.42.75.180 - prob your hosting company
Can you post a failed mail header a/o an NDR?
Also, since you mention SBS2003 & AT&T, I suspect this server's gateway is on an AT&T network - correct?
- If so, the email packets leaving your email server will show an origination IP of AT&T - not TDS. Keeping in mind that many ISP will block mail that appears to be being "relayed"...
Probably unrelated, but your (salesresultsinc.com) domain registration points to 208.42.75.180 - prob your hosting company
Can you post a failed mail header a/o an NDR?
ASKER
Hello Press,
TDS Telecom is correct. The problem is that we cannot send emails to an address with an AT&T domain (i.e. sbcglobal.com, att.net, ameritech.net, etc...)
TDS Telecom is correct. The problem is that we cannot send emails to an address with an AT&T domain (i.e. sbcglobal.com, att.net, ameritech.net, etc...)
Sorry, for some reason I thought you were on an AT&T Network....
In any case, can I assume that TDS is you DSL ISP?
Do you have a public static (vs dynamic) IP assigned to the mail server a/o DSL account?
Are you able to post a failed mail header a/o NDR?
In any case, can I assume that TDS is you DSL ISP?
Do you have a public static (vs dynamic) IP assigned to the mail server a/o DSL account?
Are you able to post a failed mail header a/o NDR?
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Exchange is the server side of a collaborative application product that is part of the Microsoft Server infrastructure. Exchange's major features include email, calendaring, contacts and tasks, support for mobile and web-based access to information, and support for data storage.
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I have a subscription to www.dnsstuff.com and able to check if domain names are blacklisted. I suggest you start from there, and start tightening your messaging system right away.