• Status: Solved
  • Priority: Medium
  • Security: Public
  • Views: 424
  • Last Modified:

Outlook 2010 64 bit Exchange 2003

I recently purchased two Dell Latitude laptops, Win 7 Pro.  The first one is running Office 2010 32 bit, and email is working fine.  The second one is running Office 2010 64 bit, and I'm having problems with Outlook.  Whenever I log on, it gives me the "no default mail client" message, and tells me to run Outlook and set it as the default.  I have done this, I have also tried setting it as the default through control panel, I have tried repairing and reinstalling Office, and I have also tried deleted the Outlook 2010 registry key.  The message still comes back.

Even more importantly, I can't send email.  I can receive it fine, but if I try to send an email, it just stays in the outbox, even if I hit Send/Receive.

Our mail server is running SBS 2003, Exchange 2003 SP2.  I'm wondering if there are compatibility issues between Outlook 2010 64bit and Exchange 2003,  or what else the problem could be...

  • 2
1 Solution
Tony GiangrecoCommented:
Make this change in Outlook:

Account Settings>Change>More Settings>Security>Change "Negotiate Authentication" to "Password Authentication(NTLM)".

tinajoe7Author Commented:
Yay, that worked!  Thanks!
Tony GiangrecoCommented:
Glad I could help
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.

Join & Write a Comment

Featured Post

Get your problem seen by more experts

Be seen. Boost your question’s priority for more expert views and faster solutions

  • 2
Tackle projects and never again get stuck behind a technical roadblock.
Join Now