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Last Updated: Sep 19th, 2009 - 11:47:53 |
Outbound Mail Blocked by Comcast - To all Comcact Customers
Houston - Houston TX Metro Area
Starting November 28th 2008 Comcast, ISP has started blocking all outbound traffic to port 25 on it's network without notice to their customers.
This is a lame attempt to stop the unsolicited email (SPAM) on the network.
This will prevent you from sending out email even if you have Comcast set as your SMTP server (smtp.comcast.net).
To fix the problem manually, do the following.
1. Configure outbound email to smtp.comcast.net, but on port 587, not the default port 25.
2. You must use password authentication for outbound SMTP unless you’re using your ISP’s web mail. If you forgot your username and password you will have to call Comcast to get them.
For an auto fix for OutLook Express only go to:
www.comcastsupport.com/alternateport and download the OneClick fix. You must log on to the with Microsoft Internet Explorer and it should fix your Outlook Express mail client.
If you have questions, it is recommended that you call Comcast security department. Calling Front line support won't do you any good as they don't know what is going on.
Here are some numbers that may allow you to get through to a knowledgeable tech in the security department
1-856-317-7272
1-856-317-7200
Contact the Executive Offices at: 1-215-665-1700 or 1-215-665-2278.
For more information on this issue, Google comcast blocking port 25.
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