Exch 5.5 POP Server Authentication


Here is the scenario:  I have an internal network with a Linksys router to the ISP.  I have a DNS server handling the routes.  I have another server for Exchange 5.5 and mail works fine for internal users.  Mail also works fine for VPN users.  My issue is POP authentication.  I have telneted to the box and get to the point where I can enter:
 user username
 pass password

but every time I enter the password it comes up bad username or password.

Whenever I use a client (outlook 2000) it continuously asks for the username and password.  I have read many books, etc... on using POP on Exchange.  Have tried domainname/username/alias and multiple combinations of other possible usernames.  I know all the usernames and passwords and even setup another user to see if it would work.  No avail.  The domain is an Active Directory in which the Exchange Server is joined to that domain.

Does anyone have any insight as to why no username and password will work.  I have looked through the Exchange Administrator and believe everything is setup right.

Any help would be appreciated.

Who is Participating?
The--CaptainConnect With a Mentor Commented:
What POP3 connector are you using with Exchange?  (ie http://www.mapistore.com/Exchange/POP3_Downloaders/Review_00661_index.html )?

Using POP: domain\NTusername\mailboxAliasName
Unsing IMAP: domain/NTusername/mailboxAliasName
BTW: is POP protocol allowed?
spinewrAuthor Commented:
POP being used comes with Exchange 5.5, Internet Mail Service.  Port 110 is open and everyone receives their mail fine - but they are not using POP to get their mail, this is what we want to setup.

I have not used IMAP and don't understand the differences.  According to Microsoft Press on Exchange and POP.  I have tried even switching the \ and / to attempt authentication.  I am wondering if I am using the right protocol?

Let me know your thoughts...
Easily manage email signatures in Office 365

Managing email signatures in Office 365 can be a challenging task if you don't have the right tool. CodeTwo Email Signatures for Office 365 will help you implement a unified email signature look, no matter what email client is used by users. Test it for free!

Does 'netstat -an' when run on the Exchange server indicate a listener on port 110?

What happens if you try to use the software from the link I provided?


spinewrAuthor Commented:
Hi Captain.

I did the netstat -an and on the local device port 110 is listening.  If I do the
telnet servername 110
it tells me the Microsoft Exchange POP server is Ready.

I have not installed the software from the link because one of the requirements is being a DC.  This is just a member server in the domain.  Also the software is for Exchange 2000/2003 - I have worked with both which are integrated with the AD.  This is an Exchange Server 5.5 on Windows 2000 Advanced Server which is not integrated, and the mailboxes are only using the AD for authentication (Windows NT Account).

Hope this gives you a better understanding.

Any other ideas I could try - send 'em on over.  Maybe another POP connector is what I need, but we are housing our own e-mail (so all the POP connectors for internet mail accounts out there, probably would not work in this scenario).

IMAP downloads only the header.
Body content will be downloaded when clicking on the message

When connecting to port 110
do you enter
username: myDomain\myAccountInMyDomain\myMailboxAliasOnExchange

You have to provide the fully qualified domain name and the exchange mailbox aliasname
spinewrAuthor Commented:
Wanted everyone to know I actually installed SP3 to handle the issue.
Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.

All Courses

From novice to tech pro — start learning today.