Solved

Pop connector picks up mail but does not route to recipients

Posted on 2004-08-20
7
859 Views
Last Modified: 2010-05-18
My POP3 connector is picking up mails correctly, but seems to reject the mails at the point of transferring them to the recipient. I have turned on full logging and event log is showing:

Event ID: 4032
The recipient has been processed
NDR Status 502
Error code: 000000000
SMTP Reply: 454.5.7.3 Client was not authenticated

All has been OK until yesterday.  I did make changes to the SMTP default virtual server authentication on basic to enable default domains as our domain, and did this also to the other protocols, but have removed again this morning but still no difference.  I must have done something else to cause the problem but cannot for the life of me think what!!

Any help gratefully accepted.
0
Comment
Question by:zeppelin456
  • 4
  • 3
7 Comments
 
LVL 9

Expert Comment

by:robinluo
ID: 11851034
If you are sure you have reversed back all the changes you made yesterday, then restart all Exchange servcies to see if this helps.
0
 
LVL 9

Accepted Solution

by:
robinluo earned 250 total points
ID: 11851051
Make sure you leave SMTP access authentication under "anonymous" unless you have specific reason of changing it. The "anonymous" allows other SMTP server to connect to your server and deliver messages. if you turn on authentication to basic, other server will not be able to connect unless they know your password.
0
 

Author Comment

by:zeppelin456
ID: 11851183
There is no external server that required authentication - it is just the internal pop connector that is picking up the email and then trying to route them to the internal mail recipients - the authentication seems to be failing at this point.  It is 2000 SBS.
0
Is Your AD Toolbox Looking More Like a Toybox?

Managing Active Directory can get complicated.  Often, the native tools for managing AD are just not up to the task.  The largest Active Directory installations in the world have relied on one tool to manage their day-to-day administration tasks: Hyena. Start your trial today.

 

Author Comment

by:zeppelin456
ID: 11851276
Ok - I think that I must have taken anonymous off yesterday thinking that this was a potential security issue, but putting it back on all works fine.  thanks - I feel a bit stupid now!!!

Points awarded - thankyou for the help
0
 
LVL 9

Expert Comment

by:robinluo
ID: 11851278
1. So now your SMTP does not require authentication, it's under "anonymous", is this correct?
2. Have you restarted SMTP service?
0
 
LVL 9

Expert Comment

by:robinluo
ID: 11851284
Good to know the problem is solved. Have a good w/end!
0
 

Author Comment

by:zeppelin456
ID: 11851286
And you - thanks again
0

Featured Post

Does Powershell have you tied up in knots?

Managing Active Directory does not always have to be complicated.  If you are spending more time trying instead of doing, then it's time to look at something else. For nearly 20 years, AD admins around the world have used one tool for day-to-day AD management: Hyena. Discover why

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Lotus Notes – formerly IBM Notes – is an email client application, while IBM Domino (earlier Lotus Domino) is an email server. The client possesses a set of features that are even more advanced as compared to that of Outlook. Likewise, IBM Domino is…
Disabling the Directory Sync Service Account in Office 365 will stop directory synchronization from working.
In this video we show how to create a mailbox database in Exchange 2013. We show this process by using the Exchange Admin Center. Log into Exchange Admin Center.: First we need to log into the Exchange Admin Center. Navigate to the Servers >> Data…
This video shows how to quickly and easily add an email signature for all users on Exchange 2016. The resulting signature is applied on a server level by Exchange Online. The email signature template has been downloaded from: www.mail-signatures…

803 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question