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Comcast Business IP's being blocked.

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Comcast Business IP's being blocked.

 Hi,

 

I have a comcast business account (not the same account I am posting from). Recently, some of our email has being bouncing because some blacklists are now checking all the header information for IP addresses even though we are not running a mail server.

 

For example:

 

 We use google apps for business. If I send from their web mail client all of my email gets through. If I use outlook, a small, but growing number of domains have begun rejecting our emails listing our Comcast Business IP - rather than the actual mail server as the reason.

 

Some recent bounces:

>: 550 5.7.0 Your server IP address is in the SORBS DNSBL database, bye

550 Service unavailable; Client host [mail-pa0-f52.google.com] blocked by zen.spamhaus.org; 174.59.**.**  <- our comcast IP.

 

Can someone on the postmaster team reach out to these blacklists and get this resolved? We're unable to use Outlook if this continues.

 

Thank you.

 

Gold Problem Solver

Re: Comcast Business IP's being blocked.

For business support call:

 


GET 24/7 SUPPORT
800.391.3000



Need Email Help? Please post the following information in your post.
Do you use XfinityConnect? The Full or Lite version?
Do you use an email client? Which one? (Eg; Windows Live mail, Outlook, a smartphone etc.)
Which browser/version do you use? And- have you cleared your browser cache?
Which operating system? XP, Vista, Windows 7, Mac OS X
Details of the problem you are having.




Email Expert

Re: Comcast Business IP's being blocked.

omcast security should be able to help with this----------------

 

Comcast Customer Security Assurance-------------------

Normal business hours (6:00 am to 2:00 am EST, 7 days a week)

1 - 888-565-4329

 

 

Also, Business class accounts have their own help forums, this one is for residential customers-----------------

 

http://forums.businesshelp.comcast.com/




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Official Employee

Re: Comcast Business IP's being blocked.

Can you give me the full IP address?  We can see what Spamhaus has to say about it.





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