MX Messaging Resources

I write my brother (on comcast.net) almost daily, but my emails come back with failure to deliver notifications almost every time.  I am not listed on any blacklist shown by mxtoolbox.com.  The comcast.net website has no obvious way to ask to get off their blacklist.  Attached below is the vague message I get.  Any suggestions ...

Also let me know if there are any chance of false positives while using the services. Update: As of Feb, 5th 2009 the MxToolBox Forums have moved to http://community.mxtoolbox.com/forums

Hi,   I'm talking on behalf of one of the ISP in US. I'm just wondering whether we can use your MXtool IP blacklist services and any other services provided by you at our connection oriented level.  Also let me know if its a free service or a paid service.  Thanks, Stanley   Update: As of Feb, 5th 2009 the MxToolBox ...

I am getting a connection timeout everytime some one sides me mail, No mails are comming in. I have also been listed as on two blacklisted sites. I have checked my servers and workstation to see if the problem is not from my network, everything is fine. I can not delist my ip address form these sites since they say I am not having a postmaster ...

This black list company seems to be a shoddy operation. They have blacklisted the entire subnet to which we belong, and there does not appear to be a way to contact them to get off the list. Their web site is hard to navigate, and appears to be an advertisement for custom software development. I have contacted our ISP, and asked them to look into ...

MxToolBox, Inc. announced today that it has added six blacklists, also known as blocklists, RBLs, or DNSBLs, to its popular email blacklist lookup tool. The MxToolBox blacklist lookup tool will now check IP Addresses for listing on the MSRBL-Images, MSRBL-Phishing, MSRBL-Spam, MSRBL-Viruses, MSRBL-Combined and SpamHaus PBL blacklists, in addition ...

Unfortunately, we cannot speak for Comcast, nor do we know how to get in touch with a Comcast technician. SORBS has not blacklisted YOUR account, per se. SORBS is an IP Address based blacklist (an IP address, or Internet Protocol address, is a unique address that certain electronic devices use in order to identify and communicate with each other ...

Your links for Casa-Cbl+, Casa-Cbl, and Casa-Cbl- don't work.  How do I get us removed from their blacklist? Update: As of Feb, 5th 2009 the MxToolBox Forums have moved to http://community.mxtoolbox.com/forums

MxToolBox provides free email blacklist lookups and monitoring (RBL or DNSBLs)as a free service to the public.  We do not endorse any of these blacklists or even recommend them as reliable information to block spam and viruses in inbound emails.   However, many email administrators do choose to use these lists to block emails.  We ...

In the past several days, we have seen a large number of both SBC Global and Comcast users with blacklist problems. Predominately, the host IP Addresses are showing up on the Sorbs Dynamic User and Host List (DUHL) blacklist. By extension, users are seeing bounce back messages indicating that their emails are blocked because ...