Avatar of lrbarrios

asked on 

Can't authenticate locally to new POP3 and IMAP on Exchange 2003

I'm in the process of finalizing standing up our first Exchange 2003 server.  Most everything is working properly.  OWA and OMA work (through the firewall).  I cannot seem to get RPC over HTTP to work.  Also, I've gotten some iPhone and Blackberry users asking me to get them back online.  I've started the POP and IMAP services.  When I try to connect to them using Outlook 2003, even from within the network, I cannot seem to authenticate.  Every combination of credentials that I provide do not work.  Furthermore, when I telnet to POP and try to login, I'm being told '-ERR Logon failure: unknown user name or bad password.'  I'm pretty sure I know my own username and password.  I've tried various versions of usernames: windows_username; windows_domain\windows_username; exchange_alias; windows_domain\exchange_alias.  Everything gives me the same response.  I've tried messing with the authentication settings in ESM with no success (do you have to Stop and Start the POP or IMAP services after making a change to them).  I'm starting to think that I have some common authentication problem with the RPC over HTTP setup because it won't work from within the network also.  I'm not using SSL or anything fancy.  I just want it to work before I start tweaking security.  Any advice you would provide would be much appreciated.  Thanks.
Email ProtocolsExchange

Avatar of undefined
Last Comment
Avatar of lrbarrios


I could really use some help with this please... my boss is breathing down my neck to get this going.  Thanks.
Avatar of lrbarrios


I downloaded and ran ExBPA.  It didn't show anything that seemed to be related to authentication or security.  Mostly suggestions for tweaking performance parameters.

'SystemPages' set too high
3GB is not set
'HeapDeCommitFreeBlockThreshold' not set
Database backup critical (x2)
Exchange resident on domain controller
Smart host is set on SMTP virtual server
'SystemPages' setting
IMAP4 fast message retrieval
SMTP performance warning
Temporary file path optimization (x2)
Virtual memory warning
Application log size
Single global catalog in topology
SMTP srever accepts basic authentication
Consider implementing storage quotas
Crash upload logging disabled
Outlook connection range
WINS secondary is blank

I didn't see anything pointing to my problem.  Also, I forgot to mention that this is SP2 of Exchange 2003 and it's the only Exchange server.  No front-end server.  This server is inside the network.  Thanks.

Avatar of lrbarrios

Blurred text
View this solution by signing up for a free trial.
Members can start a 7-Day free trial and enjoy unlimited access to the platform.
See Pricing Options
Start Free Trial

Exchange is the server side of a collaborative application product that is part of the Microsoft Server infrastructure. Exchange's major features include email, calendaring, contacts and tasks, support for mobile and web-based access to information, and support for data storage.

Top Experts
Get a personalized solution from industry experts
Ask the experts
Read over 600 more reviews


IBM logoIntel logoMicrosoft logoUbisoft logoSAP logo
Qualcomm logoCitrix Systems logoWorkday logoErnst & Young logo
High performer badgeUsers love us badge
LinkedIn logoFacebook logoX logoInstagram logoTikTok logoYouTube logo