Internet
  • Affiliates
  • Domain Names
  • Internet Marketing
  • ISPs
  • Podcasts
  • TCP/IP
  • Web
  • XML
  • "How To" Guides for ISP services

    You are currently using a web browser that does not support HTML pages with style sheets. Please try the XHTML 1 or XHTML 1 Mobile version of this page instead.

    If you find out that you are not receiving e-mail messages that had been sent properly, there could be a few different reasons:

    Incoming e-mail blocked

    To try and reduce spam, some ISPs block e-mail being sent by specific servers. The sender should be getting a delivery failure notice indicating that the message was blocked and why, such as:

    <username@doman.net>: Connected to nnn.nnn.nnn.nnn but sender was rejected. Remote host said: 550 nnn.nnn.nnn.nnn blocked by ldap:ou=rblmx,dc=domain,dc=net -> BL004 Blocked for spam. Please see ...

    How to get the IP address unblocked depends on the ISP. Examine the delivery failure notices (have one of the message senders forward one if necessary) to see if there is a link that provides further information.

    Comcast:
    Blocked Provider Request Form

    Last updated Thursday November 30, 2006


    Printer-friendly PDF* format:

    How To Guides for ISP Services

    This Section

    You are currently viewing this page in XHTML 2 Style Sheet* format (* see Clicklets for more infomation). This document is also available in HTML Style Sheet*XHTML 1* XML* HTML 4*HTML 5 Style Sheet*HTML 5 XML*HTML 5 non-XML* XHTML Mobile* WML Mobile* and printer-friendly PDF* formats. This is accomplished with Single Source Publishing, a content management system that uses templates in XSLT style sheets provided by XML Styles .com to transform the source content for various content delivery channels. There is also RDF* metadata that describes the content of this document.