We all depend on our e-mail reaching our clients and prospects. We routinely use links,attach files, insert pictures, etc. and assume that the recipient receives the message and attachments. I have discovered from three of my clients using MS Outlook Express that the messages that I have sent to them in HTML with attachments are converted to plain text and there are no attachments on the message. I don't know how many more of my prospects/clients have the same issue, but three have called me. I first thought the issue was with my Dell laptop or software. I use Windows XP SP-2, I.E. 7.0, and MS Office Small Business 2007 with Outlook. All of my software is geniune MS brand to include Windows Live One Care virus protection. So, as a test, I partitioned my wife's HP laptop, sent messages, and same issue. The message is converted to plain text and no attachments. However, I can send a message from my PC to my wife's id, and she can forward it to my clients, and they receive it in HTML with the attachments! I discussed this with my Comcast ISP tech support and they can't figure it out. They say that my id is not "blacklisted". Two of three clients that called use Comcast. Anybody have any solutions?