Why cannot Ireply to Email from my work's intranet through Outlook

[Ben]

I just bough MS office 2003. I tried accessing my email through company's
email and am having problems replying to a messages and accessing my
calandar? Does anyone have any suggestions?

 

[Lanwench [MVP - Exchange]]

I just bough MS office 2003. I tried accessing my email through
company's email

What kind of mail server do they use, and how are you connecting to it?

and am having problems replying to a messages and
accessing my calandar?

What errors?