In some contexts where they are installed different browsers can run into this problem:

receive an email containing a internet link but clicking on it nothing happens and then you have to copy and insert it directly into your browser address bar to view it.

This problem on Outlook Express can be resolved as follows:
Open \"Internet Options\" present in \"Control Panel\" and in \"Advanced - under Browsing\" uncheck the box next to \"Reuse windows for launching shortcuts\".
Also in Internet Options Programs tab press the \"Reset Web Settings\" then click \"Yes\".

Finally, we must register the following DLLs:
Outlook Express and Internet Explorer should not be closed.
Start -> Run -> type \"regsvr32 /i urlmon.dll\" (without quotes) click on ok.
Start -> Run -> type \"regsvr32 mshtml.dll\" (without quotes) click on ok.
Start -> Run -> type \"regsvr32 /i shdocvw.dll\" (without quotes) click on ok.
Start -> Run -> type \"regsvr32 browseui.dll\" (without quotes) click on ok.
Start -> Run -> type \"regsvr32 msjava.dll\" (without quotes) click on ok.

Receive email attachments instead of where they should not be there?
The icon indicates the attachment is present but you don’t find it?
Have you received email with an attachment file winmail.dat in MS-TNEF format?

These problems are due to the RTF format of emails sent through Microsoft Outlook, since many mail clients can not read this format and there are problems with attachments.
To resolve this problem must go to the client sending the mail and set in:
\"Tools -> Options -> Mail Format -> Compose in this message format\"
and set the line \"Plain Text\".
In this way e-mails sent will be compatible with all mail clients.

If sending an email you get the following error message:

Unable to send the message. One of the recipients was rejected by the server.
The e-mail address is not accepted Questo indirizzo email è protetto dagli spambots. È necessario abilitare JavaScript per vederlo.. Subject \'Message Subject\', Account: \Questo indirizzo email è protetto dagli spambots. È necessario abilitare JavaScript per vederlo.,\' Server \Questo indirizzo email è protetto dagli spambots. È necessario abilitare JavaScript per vederlo.\', Protocol: SMTP, Server Response: \'550 5.7.1 <...> Relaying denied.
Proper authentication rest. \'Port: 25, Secure (SSL): No, Server Error 550, Error Number: 0x800CCC79

Most likely you need to set the outgoing server authentication, following the setting for Outlook Express:
go to the Tools menu - Accounts - Properties - Server and tick the box \'My server requires authentication\'

The error number 0x800C0133 in Outlook Express appears that your mail is exceeding the maximum size.
To be more precise we need to understand the operation of Outlook Express: the program for each folder in your mail create a .dbx file
This file must not exceed the size of 2GB.
And here also came to the solution of the problem, to solve this error you can proceed in several ways:

  1. Delete some mail from the folder to reduce its size
  2. Create multiple folders to move there different email so as not to exceed the proportion above
  3. Use another application to manage e-mail because of the scale probably make a professional use.

In the case of point 1 and 2 this is the default location where you can see the file size. Dbx:
C: \\ Documents and Settings \\ [User Profile] \\ Local Settings \\ Application Data \\ Identities \\ {code}\\ Microsoft \\ Outlook Express
Also after you have deleted or moved the mail run the \"Compact\" request at the close program.

The emails that are automatically deleted or simply stored in the database, unfortunately, not free space PST Outlook, making it massively increase and causing a general slowdown in the mail client.

To overcome this problem we must compress the PST file in Outlook. To do this, given that under the mail can be very slow, you have to follow the steps below:

  1. From the \"File\" menu select \"File Manager\"
  2. Select \"Personal Folder\"and click the \"Settings\" button
  3. Then click on the \"Compress\" on the General tab. Wait for the end of compaction.