Hello, Dale,

SMTP 550 error messages means you are trying to send a message via
a server that can't authenticate you.
A common occurrence of this is when you attempt to send mail via your  
mail
account with the from: set to your other ISP account. In other words,  
when
sendmail reads the mail headers, it verifies the sender domain and makes
sure it is  its own domain - not another real one or a fictitious one.
The ability to send mail from a non-local domain is called relaying and  
is
one of the main spamming tools (those addresses you can never reply to).
The fight against spam is forcing administrators to look at their email  
policies
and block relaying.
An easy way around it, if you do have multiple mail accounts, is to  
make sure
the <from> field is set to the proper domain.
A Google search on relay or the error message is always productive.
hope that helps.
-jacques.

On Sunday, January 5, 2003, at 12:08 AM, Dale Goodvin wrote:

> I still cant send mail with newly downloaded Eudora Lite 5.2
>
> I get the message:  "SMTP server says '550 relaying to [whatever
> address i'm sending to] prohibited by administrator'"
>
> "getting" messages is fine.
>
> if anyone can help me figure what i'm doing wrong with my settings i'd
> appreciate it
>
> I'm trying to send email with my earthlink account even though i'm
> connected to a different IP (I can do this with the mac mail app).
>
> thanks,
>
> Dale G--imac, 15" flat panel, OSX 10.1.5
>
> =====
> "In most cases there is no free exercise whatever ... of the moral  
> sense."--Henry David Thoreau
>
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---
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/_/  Jacques Brierre                                      
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