HTTP/1.1 403 Forbidden

[mina27]

I am trying to help my colleague to read his mails from home using the webmail. But when he starts to type in his username and password, he got an error message that says " HTTP/1.1 403 Forbidden."

This only happens to his account/profile whereas the others can easily access their webmail from home.

I went to look for answers from Microsoft and this is what they suggests:

WORKAROUND
To work around this problem, use one of the following methods:
• Add a secondary Simple Mail Transfer Protocol (SMTP) address to the affected user. The secondary SMTP address should have the following format:
abcasp@domain.com
• Remove the IIS restriction that prevents ASP pages from loading.

But I do not know where and how to go about doing it. This article did not provide step-by-step solutions. Please help.

Thank you.

[Kareeser]

Where (which computer) is he typing the username/password in, and where is the mail server located (which computer)?

[mina27]

At first, he is using my PC to log in to his webmail but then there is an error message (Pls see below)

The website declined to show this webpage
HTTP 403
Most likely causes:
This website requires you to log in.

What you can try:
Go back to the previous page.

More information

This error (HTTP 403 Forbidden) means that Internet Explorer was able to connect to the website, but it does not have permission to view the webpage.

For more information about HTTP errors, see Help.

Then when he uses his own PC, it is still the same. I don't understand your second question but what I can tell is that we are using MS Exchange Server. What other information do you need?

[mairving]

Turn off Enable Integrated Windows Authentication, which is in IE/Tools/Internet Options/Advanced Tab. That should prompt him for a login. When he logs in he should use his domain name before his username like domain\username instead of just username.