MS Outlook worked for 3 yrs 11 mos... then 550 5.7.1 ERROR. Fix??

[Julie]

MS Outlook 2003 Pro worked for 3 yrs 11 mos... then yesterday, 01/08/2010:

550 5.7.1 <e-mail address>... Relaying denied. Proper authentication required.

As a result, I cannot send e-mail to anyone. My newer computer's OS is
Windows XP Pro.

Also, the SAME error occurred on my older computer (also MS Outlook 2003
Pro) when I booted it up to send e-mail, also under Outlook 2003 Pro. My
older computer's OS is Windows 2000 Pro.

The two computers are NOT connected. I haven't changed anything on either
computer. The last successful 2003 Outlook update was months ago.

For both computers, all input data under "Internet E-mail Settings (POP3)"
is correct. My ISP has not made any changes, or hasn't told me that they've
done this.

Of course, ISP's tech reps haven't responded to my inquiry.

Can I fix this problem on both computers???
(What caused it?)

Also, yesterday, incoming e-mail to the new computer was delayed by 6-10
hours.

Many thanks,
Julie

 

[Peter Foldes]

Julie

Hopefully you are not spamming with your emails. Basically that is what the error
means and you will need to call your ISP to straighten this issue out

Just a little info on the 550 code
http://www.desknow.com/kb/idx/0/026/article/

 

[Diane Poremsky [MVP]]

It sounds like the ISP has instituted SMTP authentication and you need to
configure outlook to authentication.

See http://www.slipstick.com/Tutorials/more/settings.htm

--
Diane Poremsky [MVP - Outlook]

Outlook & Exchange Solutions Center: http://www.slipstick.com/

Outlook Tips by email:
mailto:[email protected]

EMO - a weekly newsletter about Outlook and Exchange:
mailto:[email protected]

Poll: What version of Exchange server do you use?
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[N. Miller]

Hopefully you are not spamming with your emails.

"Objection, Your Honor! Assumes facts not in evidence!"

 

[N. Miller]

MS Outlook 2003 Pro worked for 3 yrs 11 mos... then yesterday, 01/08/2010:

550 5.7.1 <e-mail address>... Relaying denied. Proper authentication required.

As a result, I cannot send e-mail to anyone. My newer computer's OS is
Windows XP Pro.

Also, the SAME error occurred on my older computer (also MS Outlook 2003
Pro) when I booted it up to send e-mail, also under Outlook 2003 Pro. My
older computer's OS is Windows 2000 Pro.

The two computers are NOT connected. I haven't changed anything on either
computer. The last successful 2003 Outlook update was months ago.

For both computers, all input data under "Internet E-mail Settings (POP3)"
is correct. My ISP has not made any changes, or hasn't told me that they've
done this.

Of course, ISP's tech reps haven't responded to my inquiry.

Can I fix this problem on both computers???
(What caused it?)

Also, yesterday, incoming e-mail to the new computer was delayed by 6-10
hours.

I concur with Diane Poremsky. Many ISPs offered email service with
authentication accomplished by putting their user's IP addresses into an
"Access Control List". No need to use a "User_Name+Password" combination for
access. Later, some changed to require use of the "User_Name+Password"
combination to prove that they are authorized users of the service. And
email notification of such change often gets caught in spam filters, or the
ISP just fail to send notification.

 

[Peter Foldes]

Norman

Read the post again from the OP (both computers with different OS and mail client on
each)

I can understand and also concur with what Diane posted BUT the OP has the issue not
on one of her system but on both with different OS and mail client being installed.
The 550 issue in this case is because of spamming..She needs to call her ISP to
settle the issue.

 

[Diane Poremsky [MVP]]

Nah, its highly unlikely the person is spamming or has a trojan installed-
the isp turned on smtp authentication, or changed the method they used. My
money is on both systems are configured identically, without the correct
smtp authentication method.

--
Diane Poremsky [MVP - Outlook]

Outlook & Exchange Solutions Center: http://www.slipstick.com/

Outlook Tips by email:
mailto:[email protected]

EMO - a weekly newsletter about Outlook and Exchange:
mailto:[email protected]

Poll: What version of Exchange server do you use?
http://forums.slipstick.com/showthread.php?t=33803

Norman

Read the post again from the OP (both computers with different OS and mail
client on each)

I can understand and also concur with what Diane posted BUT the OP has the
issue not on one of her system but on both with different OS and mail
client being installed. The 550 issue in this case is because of
spamming..She needs to call her ISP to settle the issue.

 

[Peter Foldes]

Hi Diane

Hopefully the OP will post back.

BTW: HNYear

--
Peter

Please Reply to Newsgroup for the benefit of others
Requests for assistance by email can not and will not be acknowledged.

Nah, its highly unlikely the person is spamming or has a trojan installed- the isp
turned on smtp authentication, or changed the method they used. My money is on
both systems are configured identically, without the correct smtp authentication
method.

--
Diane Poremsky [MVP - Outlook]

Outlook & Exchange Solutions Center: http://www.slipstick.com/

Outlook Tips by email:
mailto:[email protected]

EMO - a weekly newsletter about Outlook and Exchange:
mailto:[email protected]

Poll: What version of Exchange server do you use?
http://forums.slipstick.com/showthread.php?t=33803