error 554 5.7.1 and 553 when sending in outlook 2003

[Linde]

When trying to send emails from outlook 2003 I receive the following error
messages. My settings are correct. I can receive messages.


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

Subject: RE:
Sent: 2008/07/11 09:57 AM

The following recipient(s) could not be reached:

'xxx xxx' on 2008/07/11 09:57 AM
554 Mailbox unavailable.

and

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

Subject:
Sent: 2008/07/11 01:02 AM

The following recipient(s) could not be reached:

'(e-mail address removed)' on 2008/07/11 01:02 AM
553 sorry, relaying denied from your location [41.22.98.152]
(#5.7.1)

and

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

Subject: RE: x
Sent: 2008/07/11 09:57 AM

The following recipient(s) could not be reached:

'xxx xxx' on 2008/07/11 09:57 AM
554 5.7.1 <[email protected]>: Relay access denied

 

[Brian Tillman]

When trying to send emails from outlook 2003 I receive the following
error messages. My settings are correct. I can receive messages.

If your settings were correct, you wouldn't be getting the errors.

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

Subject: RE:
Sent: 2008/07/11 09:57 AM

The following recipient(s) could not be reached:

'xxx xxx' on 2008/07/11 09:57 AM
554 Mailbox unavailable.

This says that the address to which you're sending doesn't exist on the
destination server or that it's got a problem and the mail server can't
write to it. Make sure the address is correct.

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

Subject:
Sent: 2008/07/11 01:02 AM

The following recipient(s) could not be reached:

'(e-mail address removed)' on 2008/07/11 01:02 AM
553 sorry, relaying denied from your location
[41.22.98.152] (#5.7.1)

This says you're not properly authenticating to the outgoing server and
that's something you can address. Enable to option to authenticate. Follow
the instructions your ISP provides for doing that.

 

[Linde]

Thanks Brian - but all my settings were still working fine on Wednesday. As
far as I know there isn't supposed to be a difference in the settings I use
at work and the settings on my 3g Huawei modem - both on my laptop. Although
it is two different ISPs. But I never had any problems before.

All the addresses I sent mail to are valid.

When trying to send emails from outlook 2003 I receive the following
error messages. My settings are correct. I can receive messages.

If your settings were correct, you wouldn't be getting the errors.

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

Subject: RE:
Sent: 2008/07/11 09:57 AM

The following recipient(s) could not be reached:

'xxx xxx' on 2008/07/11 09:57 AM
554 Mailbox unavailable.

This says that the address to which you're sending doesn't exist on the
destination server or that it's got a problem and the mail server can't
write to it. Make sure the address is correct.

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

Subject:
Sent: 2008/07/11 01:02 AM

The following recipient(s) could not be reached:

'(e-mail address removed)' on 2008/07/11 01:02 AM
553 sorry, relaying denied from your location
[41.22.98.152] (#5.7.1)

This says you're not properly authenticating to the outgoing server and
that's something you can address. Enable to option to authenticate. Follow
the instructions your ISP provides for doing that.