Attachments, and Undeliverable: Relaying denied. Proper authentication required

[Guest]

I tried to send out an e-mail with a lot of attachments (900K)--3 seconds after hitting the send button the mail bounced back, with a title "Undeliverable" from "system administrator"

Your message did not reach some or all of the intended recipients.
Subject: attachements
Sent: 11/8/2003 1:01 AM
The following recipient(s) could not be reached:
'(e-mail address removed)' on 11/8/2003 1:01 AM
550 5.7.1 <[email protected]>... Relaying denied. Proper authentication required.

However, when I try to send a test e-mail to myself later (without any attachments)--the mail went through and I successfully received the mail I sent out.

Well this never happened before. My ISP just experienced a outage when I was out today. After returning home, the service was back, albeit having the newe conditions as mentioned above.

Why? Thank you!

 

[Diane Poremsky [MVP]]

send a test message to an account not on your isp server - they may allow
local mail but have it misconfigured for internet mail.

--
Diane Poremsky [MVP - Outlook]
Author, Teach Yourself Outlook 2003 in 24 Hours
Coauthor, Visual Quick Start Guide - OneNote 2003


http://www.poremsky.com - http://www.cdolive.com
Expert Zone http://www.microsoft.com/windowsxp/expertzone

Search for answers: http://groups.google.com
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I tried to send out an e-mail with a lot of attachments (900K)--3 seconds

after hitting the send button the mail bounced back, with a title
"Undeliverable" from "system administrator"

Your message did not reach some or all of the intended recipients.
Subject: attachements
Sent: 11/8/2003 1:01 AM
The following recipient(s) could not be reached:
'(e-mail address removed)' on 11/8/2003 1:01 AM
550 5.7.1 <[email protected]>... Relaying denied. Proper authentication required.

However, when I try to send a test e-mail to myself later (without any

attachments)--the mail went through and I successfully received the mail I
sent out.

Well this never happened before. My ISP just experienced a outage when I

was out today. After returning home, the service was back, albeit having the
newe conditions as mentioned above.

 

[Guest]

This is what I do

Tool -> e-mail accounts -> view or change existing accounts -> change ->

And hit "test account settings.

Then I did receive the e-mail that I sent to myself. It said:
This is an e-mail message sent automatically by Microsoft Outlook's Account Manager while testing the settings for your POP3 account

But, when I went back to send regular e-mail to individuals not in my own domain name, they are bounced back againâ€

The problem persists---What should I do