Hi I hope some one can help me out on this one? we have a client who constantly gets the following error message when sending to a specific company. The following recipient(s) could not be reached: xxxxxx xxx on 30/10/2007 12:26 you do not have permission to send to thisrecipient. For assistance, contact your system administrator. <non-xxxxxxxx.com #5.7.1 smpt;550 5.7.1 Requested action not taken; message refused> Any ideas would be greatfully received Thanks Dan

You'll have to get in touch with the recipient company's IT/mail guy. They are probably refusing the message because of some content restriction or anti-spam system gone foul.

Check if your server is not on a Block list http://www.dnsstuff.com Deli

I have the same issues, I can send email to customers but my Pop3 users out in the field can not send email to anyone but internal email addresses. This is only happening to external users. I have the Allow set for all authenticated users and I have them turn on the authentication for it. I am stumped! Help. David Allred