571 [email protected] prohibited we do not relay

[Guest]

I am struggling to send email addresses. They are being returned by "system
administrator" with the following note:

our message did not reach some or all of the intended recipients.

Subject: RE: Friday
Sent: 04/05/2006 19:06

The following recipient(s) could not be reached:

'Jo Reid' on 04/05/2006 19:06
571 (e-mail address removed) prohibited. We do not relay

Any suggestions???

 

[Vince Averello [MVP-Outlook]]

Sounds like you're using an SMTP server not on your ISPs network

 

[Guest]

Sounds like you're using an SMTP server not on your ISPs network

 

[Guest]

I am having the same problem. Error 571

It seems random. If I close Outlook and open it again I can usually send the
bounced message.

They are being bounced before leaving my machine.