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553 sorry, that domain isn’t allowed to be relayed thru this MTA

 
 
Terry
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      18th Apr 2008
When sending mail from Outlook 03 using a POP3 and SMTP server. Often but not
all the time I receive the error "553 sorry, that domain isn’t allowed to be
relayed thru this MTA (# 5.71)".

This happens when sending to the SAME address some times it works other time
not.
 
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VanguardLH
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      19th Apr 2008
Terry wrote:

> When sending mail from Outlook 03 using a POP3 and SMTP server. Often but not
> all the time I receive the error "553 sorry, that domain isn¢t allowed to be
> relayed thru this MTA (# 5.71)".
>
> This happens when sending to the SAME address some times it works other time
> not.


In the e-mail account defined in Outlook, enable SMTP authentication.
 
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Terry
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      19th Apr 2008
SMTP is enabled, that is why I do not understand why I'm getting the error

"VanguardLH" wrote:

> Terry wrote:
>
> > When sending mail from Outlook 03 using a POP3 and SMTP server. Often but not
> > all the time I receive the error "553 sorry, that domain isnʼt allowed to be
> > relayed thru this MTA (# 5.71)".
> >
> > This happens when sending to the SAME address some times it works other time
> > not.

>
> In the e-mail account defined in Outlook, enable SMTP authentication.
>

 
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VanguardLH
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      19th Apr 2008
Terry wrote:

> SMTP is enabled, that is why I do not understand why I'm getting the error
>
> "VanguardLH" wrote:
>
>> Terry wrote:
>>
>>> When sending mail from Outlook 03 using a POP3 and SMTP server. Often but not
>>> all the time I receive the error "553 sorry, that domain isnʼt allowed to be
>>> relayed thru this MTA (# 5.71)".
>>>
>>> This happens when sending to the SAME address some times it works other time
>>> not.

>>
>> In the e-mail account defined in Outlook, enable SMTP authentication.
>>


Enabled? That merely means you have an SMTP server defined so that
e-mail account can use it. Authentication means you have to enable THAT
option. The default for SMTP authentication is to reuse the login
credentials for the POP server access. Try selecting to use different
login credentials but specify whatever are the correct ones (which may
be the same as the POP login).

The "error" to which you refer is actually an e-mail. In the headers of
that NDR (non-delivery report) e-mail, who is sending it to you? Does
it come from your own sending mail host? Or was it sent by the
receiving mail host?

Are you running your own SMTP server and trying to send e-mail through
that (and then onto your ISP's SMTP server)? Or is Outlook connecting
directly to the ISP's SMTP server?

Have you yet tried disabling e-mail scanning in your anti-virus program?
Some behave as a transparent SMTP server to intercept your e-mails,
interrogate them, and then send them to the real SMTP server.
 
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Terry
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      21st Apr 2008
Well without changing anything it seems to be working so, if it not brook I
am changing anything

Thanks
Terry

"VanguardLH" wrote:

> Terry wrote:
>
> > SMTP is enabled, that is why I do not understand why I'm getting the error
> >
> > "VanguardLH" wrote:
> >
> >> Terry wrote:
> >>
> >>> When sending mail from Outlook 03 using a POP3 and SMTP server. Often but not
> >>> all the time I receive the error "553 sorry, that domain isnʼt allowed to be
> >>> relayed thru this MTA (# 5.71)".
> >>>
> >>> This happens when sending to the SAME address some times it works other time
> >>> not.
> >>
> >> In the e-mail account defined in Outlook, enable SMTP authentication.
> >>

>
> Enabled? That merely means you have an SMTP server defined so that
> e-mail account can use it. Authentication means you have to enable THAT
> option. The default for SMTP authentication is to reuse the login
> credentials for the POP server access. Try selecting to use different
> login credentials but specify whatever are the correct ones (which may
> be the same as the POP login).
>
> The "error" to which you refer is actually an e-mail. In the headers of
> that NDR (non-delivery report) e-mail, who is sending it to you? Does
> it come from your own sending mail host? Or was it sent by the
> receiving mail host?
>
> Are you running your own SMTP server and trying to send e-mail through
> that (and then onto your ISP's SMTP server)? Or is Outlook connecting
> directly to the ISP's SMTP server?
>
> Have you yet tried disabling e-mail scanning in your anti-virus program?
> Some behave as a transparent SMTP server to intercept your e-mails,
> interrogate them, and then send them to the real SMTP server.
>

 
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